Advertisement Remove all ads. The coil rotates at 75.7 rad/s in a 0.219-T magnetic field. What is the magnitude of the magnetic field B at the centre of the coil? The magnitude of the current (I) passing through the coil is 0.4 A. (a) A bicycle generator rotates at 1875 rad/s, producing an 18.0 V peak emf. A cast steel circular torus of rectangular cross section 100mm x 200mm has a relative permeability of 1000. (i), we get= 2.97x 10-4T A circular coil consisting of 500 turns with an area of 6.0x10-4 m2 is rotating in a uniform magnetic field. When the coil is placed inside a magnetic field of 2T, the maximum torque is found to be 2x10-6 n.m. (a) Calculate thecurrent i in the coil. Calculate the magnitude of the counter torque that must be applied to prevent the coil from turning. After 15s, the normal to the coil is 60 with the magnetic field. A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. A circular coil of radius 10 cm,500 turns and resistance 2 is placed with its plane perpendicular to the horizontal component of the earth's magnetic field. a circular coil consisting of 500 turns with an area of 6.0 x 10^-4m2 is rotating in a uniform magnetic field. Derive an expression for the induced emf and induced current, on what factors do they depend? Ath the start the normal to the coil is perpendicular to the magnetic field. A generator has a square coil consisting of 202 turns. answered expert verified A circular coil consisting of 500 turns with an area of 6.0x10-4 m 2 is rotating in a uniform magnetic field. Consider again a coil consisting of Nturns and carrying current Iin the counterclockwise direction, as shown in Figure 11.2.1. A circular coil of radius 1 0 c m, 5 0 0 turns and resistance 2 is placed with its plane perpendicular to the horizontal component of the earth's magnetic field. At the start, the normal to the coil is perpendicular to the magnetic field. Updated On: 17-04-2022 Answer A circular coil of N turns, each of area A is rotated at an angular frequency in magnetic field B. (a) A circular coil of 30 turns and radius 8.0 c m.Carrying a current of 6.0 A is suspended vertically in a uniform horizontal magnetic field of magnitude 1.0 T.The field lines make an angle of 60 with the normal to the coil. What is the emf induced in the coil? By Ampere's law = d B dt = (2.0 T . What is the magnetic field at the center of the coil? A circular coil of wire consisting of 100 turns each of radius 9 cm carries of 0.4A. What is the magnitude of the magnetic . The coil is connected to a 600-\Omega 600 resistor, and its plane is perpendicular to the magnetic field. The peak output of the generator is 65.4 V. What is the length of one side of the coil? Calculate the magnetic field due to a circular coil of 500 turns and of mean diameter 0.1m, carrying a current of 14A (i) at a point on the axis distance 0.12 m from the centre of the coil (ii) at the centre of the coil. The average induced electromagnetic field os -0.058V. Calculate the self-inductance of the coil in milli-Henries. Solution Show Solution. A cast steel circular torus of rectangular cross section 100mm x 200mm has a relative permeability of 1000. Oa 1.47 cm Ob 14.7cm Oc 17.4 cm d. 74.1 cm Question Moving to another question will save this What is the magnitude of the magnetic field B at the centre of the coil? The average induced emf is -0.058V. 1.34 mT O c. 3.14 mT O d. 3.41 mT A solenoid has enough wire for 500 turns, 2 m long and 10 cm radius carries a current of 10 A? . What is the magnitude of the magnetic field B at the centre of the coil? What is the magnitude of the magnetic field B at the centre of the coil? The radius of each turn is given by, R = 8.0 c m = 0.08 m. Current flowing in the coil is given by, I = 0.4 A. mo A circular coil consisting of 500 turns with an area of 6.0 x10-*m is rotating in a uniform magnetic field. 5. A circular coil consisting of 500 turns with an area of 6.0x10-4 m 2 is rotating in a uniform magnetic field. 2 5 s. The current induced in the coil is (Horizontal component of the earth's magnetic field at that place is 3 . A coil 4.00 cm in radius, containing 500 turns, is placed in a uniform magnetic field that varies with time according to B = (0.0120 T / s ) t+\left (3.00 \times 10^ {-5} T / s^ {4}\right) t^ {4} B = (0.0120T /s)t +(3.00 105T /s4)t4 . If is rotated about its vertical diameter through 180 m in 0.25 s. The current induced in the coil is (Horizontal component of the earth's magnetic field at that place is 3.010 5T). Question. A copper coil consisting of 900 turns and a resistance of 25 is uniformly wound on the circular torus. A 500-turn circular coil with an area of 0.050 0 m2 is mounted on a rotating frame, which turns at a rate of 20.0 rad/s in the . ndu tri The internal and external diameters of the torus are 500 mm and 600 mm respectively. If the current is steady, then the magnetic flux through the loop will remain constant. Problem 1. Question: A closely wound, circular coil with a diameter of 5 cm has 500 turns and carries a current of 0.5 A. A Circular coil of wire consisting of 100 turns, each of radius 8.0cm carries a current of 0.40A. After 15s, the normal to the coil is 60 with the magnetic field. Solution for A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. A circular coil of 500 turns of wire has an enclosed area of 0. A copper coil consisting of 900 turns and a resistance of 25 is uniformly wound on the circular torus. The peak output of the generator is 71.9 V. . It is unwound and rewound to make another coil of . After 15 s, the normal to the coil is 60 with the magnetic field. 4.13 mT O b. The average induced emf is -0.058V. A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries current of 0.40 A. asked Aug 23, 2018 in Physics by AnujPatel (53.8k points) moving charges and magnetism; jee mains; 0 votes. Calculate the magnitude of the counter torque that must be applied to prevent the coil from turning. A at loop of wire consisting of a single turn of cross-sectional area A=8.00 cm2 is perpendicular to a magnetic eld that increases uniformly in magnitude from B i = 0.500 T to B f = 2.50 T in 1.00 s. What is the resulting induced current if the loop has a resistance of R=2.00. The number of coil turns (n) is 100. The average induced emf is -0.058 V. What is the magnitude of the magnetic field? A circular coil of 500 turns of wire has an enclosed area of 0.1m 2 per turn.It is kept perpendicular to a magnetic induction of 0.2 T and rotated by 180 o about a diameter perpendicular to the field in 0.1 second. Solution For A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. A circular loop of wire with a radius of 4.0 cm is in a uniform magnetic field of magnitude 0.061 T. The plane of the loop is perpendicular to the direction of . A at coil of wire consisting of 56 turns, each with an area of 39 cm^2, is . A circular coil has 500 turns and . Advertisement Remove all ads. A circular coil of 'N' turns and diameter 'd' carries a current 'I'. Class 12 - Physics - Moving Charges And Magnetism Moving Charges And Magnetism Page-169 A 500-turn circular coil with an area of 0.050 0 m2 is mounted on a rotating frame that turns at a rate of 20.0 rad/s in the presence of a 0.050 0-T uniform magnetic field that is perpendicular to the axis of rotation. A coil consisting of 10 turns of wire each in an area of 0.025 m^2 is rotating in a magnetic field that is decreasing at the rate of 0.32 T/s. 5. Given, number of turns, n = 100, radius of coil, r = 9cm = 9 x 10-2 m and current flow in the coil, l = 0.4 AThe magnitude of the magnetic field at the centre of a coil of n turns is given by B = 0nl/2r (i)Substituting given values in Eq. Question 4.1: A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. At the start, the normal to the coil is perpendicular to the magnetic field. What is the magnitude of the magnetic field? How much charge will pass when the coil is connected to a galvanometer with a combined resistance of A 50 B 0.4 C C 0.2 C D 4 C Medium What is the magnitude of the magnetic field? At terminal velocity, the magnetic force on this current equals the force due to gravity or mg=BiL=B2L2v/R. The magnitude of magnetic field at the centre of the coil is: A 2.410 4 T B 3.510 4 T C 2.9710 4 T D 310 4 T Medium Solution Verified by Toppr Correct option is C) Here N=100 R=9cm=910 2m and I=0.4A Now, B= 2R 0 NI = 910 2210 71000.4 = 923.140.4 What is the magnitude of the magnetic field B at the centre of the coil? After 15s, the normal to the coil is 60 with the magnetic field. Its axis makes an angel of `30^@` with the uniform magnetic field of 0f magnitude 0.40 T that exists in the space. Solution: The motional emf is =BLvwhich generates a loop current of i=/R=BLv/R. A circular coil of radius 2.0 cm has 500 turns in it and carries a current of 1.0 A . The coil is energized with a 40V de source and the . 1 answer. A coil with a circular cross-section having an area of 40cm2 has 40 turns. Find the torque acting on the total. Data: N = 100, R = 8 10 2 m, I = 0.4 A, . Each turn's radius (r) is 8 cm (0.08 m). What is the magnitude of the magnetic After 15s, the normal to the coil is 60 with the magnetic field. A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. A circular coil of wire consisting of 100 turns each of radius 9 c m carries a current of 0.4 A. A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. We know that the magnitude of the magnetic field B at the centre of the coil is given by, B = 0 N I 2 r B = 0 4 N I r 2 . Ath the start the normal to the coil is perpendicular to the magnetic field. What is the magnitude of the magnetic field `bar`B at the c. . A hollow air cored inductor coil consists of 500 turns of copper wire which produces a magnetic flux of 10mWb when passing a DC current of 10 amps. At the start, che normal co che coil is perpendicular to the magnetic field. Data: N = 100, R = 8 10 2 m, I = 0.4 A, . Physics Secondary School answered A circular coil consisting of 500 turns with an area of 6.0x10-4 m2 is rotating in a uniform magnetic field. 1 m 2 per turn.It is kept perpendicular to a magnetic induction of 0.2 T and rotated by 1 8 0 o about a diameter perpendicular to the field in 0.1 second. Transcribed Image Text: 5. Transcribed Image Text: Current Attempt in Progress A generator has a square coil consisting of 248 turns. What is the instantaneous emf in the . How much charge will pass when the coil is connected to a galvanometer with a combined resistance of At the start, the normal to the coil is perpendicular to the magnetic field. Solving yields v= 3.51 m/s. Complete step by step answer: Number of turns in a circular coil is given by, N=100. The average induced electromagnetic field os -0.058V. The coil rotates at 115 rad/s in a 0.170-T magnetic field. (a) A circular coil of 30 turns and radius 8.0 c m.Carrying a current of 6.0 A is suspended vertically in a uniform horizontal magnetic field of magnitude 1.0 T.The field lines make an angle of 60 with the normal to the coil. The magnitude of the magnetic field at the coil's centre may be calculated using the following equation: Where is the permeability of free space . A transformer consists of a 300-turn primary coil and a 2000-turn secondary coil. Answer Number of turns on the circular coil, n = 100 Radius of each turn, r = 8.0 cm = 0.08 m Current flowing in the coil, I = 0.4 A 277391081 5.8 k+ 7.4 k+ 07:58 hence, The magnitude of the magnetic field is A Solution Show Solution. It has a 1.00 by 3.00 cm rectangular coil in a 0.640 T field. At the start, the normal to the coil is perpendicular to the magnetic field. The average induced emf is -0.058V. If the current in the coil is 5.0 A, what is the (a) total torque on the coil, (b) the total force on the coil, (c) average force on each electron in the coil due to the magnetic field? After 15s the normal to the coil is 60 with the magnetic field. What is the peak emf generated by a 0.250 m radius, 500-turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having its plane perpendicular to a uniform magnetic field. a circular coil consisting of 500 turns with an area of 6.0 x 10^-4m2 is rotating in a uniform magnetic field. If is rotated about its vertical diameter through 1 8 0 m in 0. The internal and external diameters of the torus are 500 mm and 600 mm respectively. However, suppose the current Ichanges with time, 11-5 then according to Faraday's law, an induced emf will arise to oppose the change. (This is 60 rev/s.) thumb_up 100%. The magnitude of the magnetic field at the centre of coil is [ 0 = 12.56 1 7 SI Unit] 1841 38 MHT CET MHT CET 2019 Report Error What is the magnitude of the magnetic field B A flat coil of wire consisting of 20 turns, each with an area of 50 cm2, is positioned perpendicularly to a uniform magnetic field that increases its magnitude at a constant rate from 2.0 T to 6.0 T in 2.0 s. . a. Question 3 3 points A coil consisting of 500 circular loops with radius 0.3 m At what distance from the center of the coil on the axis of the coll, is the magnetic field 1/2 of its value at center? After 15s the normal to the coil is 60 with the magnetic field. The average induced emf is -0.058V. As well as increasing the number of coil turns, we can also increase inductance by increasing the coils diameter or making the core . O a. Question. Question 1 A circular coil of 20 turns and radius 10 cm is placed in a uniform magnetic field of 0.10 T normal to the plane of the coil. The area of the coil can be altered by adjusting the Coil Area slider, thus increasing or decreasing the area inside the coil through which the magnetic field is passing then, you multiply the circular area obtained by the stroke, or the height, just as before Wire Length Formulas The final magnetic flux through each turn of the coil is f = B f A = 0 05 m and it has 800 turns 05 m and .