The current in a coil drops from 3.7 A to 2.6 A in 0.49 s. If the average emf induced in the coil is 12 mV, what is the self-inductance of the coil?
The current through a square coil of wire connected to a power supply is changed from 3.6 A to 1.9 A in 0.53 s. Determine the self-inductance of the coil if the average induced emf due to this change in current is 10 mV. L= H
A coil has an induced emf of 89 x 10-2 V. If the current in the coil drops from 2.9 A to 1.1 Ain 0.3 s, what is the self- inductance of the coil?
A coil has 460 turns and self-inductance 7.50 mH. The current in the coil varies with time according to i=(680mA)cos[πt/(0.0250s)]. What is the maximum emf induced in the coil? What is the maximum average flux through each turn of the coil? At t=0.0180 s, what is the magnitude of the induced emf?
10. A coil has 400 turns and self-inductance 4.80 mH. The current in the coil varies with time according to i=(680mA)cos(att/0.0250s). (a) What is the maximum emf induced in the coil? (b) What is the maximum average flux through each turn of the coil? (c) At t= 0.0180 s, what is the magnitude of the induced emf?
The current in a coil changes from 5.2 A to 3.2 A in the same direction in 2.99 seconds. If the averaged emf induced in the coil is 10.3 mV, what is the inductance of the coil? Answer in mH with 1 decimal point.
An EMF of 0.524 V is induced across a coil when the current through it changes uniformly from 0.10 to 0.60 A in 0.597 s. What is the self-inductance of the coil? .60 A in 0.597 s. What is the self-inductance of t
At the instant when the current in a coil is increasing at a rate of 0.25 A/s, the magnitude of the self-induced emf is 0.021 V. What is the inductance of the coil?
If a coil that carries 10A, when the switch is open (circuit is disconnected) the current drops to 0A in 2 ms. What is the inductance of the coil if the average induced emf (ε) is 9V? What is the energy stored in the magnetic field?
8. A coil has 1000 turns. When the current in the coil is 4.00 A, the average flux through each turn of the coil is 0.0250 Wb. What is the self-induced emf in the coil (in V) when the current in the coil is changing at a rate of 12.0 A/S? (A) 93.8 (B) 826 (C) 75.0 (D) 41.5 (E) 50.0 (F) 675
8. A coil has 1000 turns. When the current in the coil is 4.00 A, the average flux through each turn of the coil is 0.0250 Wb. What is the self-induced emf in the coil (in V) when the current in the coil is changing at a rate of 12.0 A/s? (A) 93.8 (B) 82.6 (C) 75.0 (D) 41.5 (E) 50.0 (F) 67.5