The rate of change of current in coil 1 is di 5 mA/ slence, there's a change of dt magnetic flux in coil 2, which induces an emf in coil 2 by Faraday's law. The magnitude of the emf induced in the coil 2 is E2 = 12 V. The number of turns in the coil 2 is N2 = 44
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- A wire coil of 30 turns has a cross-sectional area of 12 cm2. The coil is placed in a uniform field of a large magnet with B = 0.27 T. The coil is suddenly rotated 90 o from an orientation parallel to the field to one perpendicular to the field. The time to flip the coil is 0.57 s. What is the magnitude of the average emf produced? What will be the average current produced if the circuit of the coil is closed and the resistance is 55 ohm?An emf is induced by rotating a 1000 turn, 15 cm diameter coil in the Earth’s 5.00 × 10-5 T magnetic field. What average emf (in volts) is induced, given the plane of the coil is originally perpendicular to the Earth’s field and is rotated to be parallel to the field in 8 ms?A flat loop of wire consisting of a single turn of cross- sectional area 0.01 m^2 is perpendicular to a magnetic field that increases uniformly in magnitude from 2T to 8T in 3s. What is the EMF in the loop?
- A 5-turn conducting loop with a radius of 3.0 cm with axis of rotation in the plane of the paper spins at 60 revolutions per second in a magnetic field of 0.50 T that is perpendicular to the paper. The maximum emf generated is: 0.14 V 8.3 V 28 V 2.7 V 10.5 VA coil with 35 turns sits in a magnetic field. The cross-sectional area of the coil is 5.1 cm2. If the magnetic field uniformly reduces from 1.0×101 T to 1.5 T in 6.5 seconds, what is the magnitude of the induced emf in that coil?Magnetic flux increases from 0 to 2 Tm2 in one turn conducting loop within 0.5s. What is the induced emf in the loop? 0.5 V 2 V 0.3 V 4 V 1 V