An EMF of 0.524 V is induced across a coil when the current through it changes...

Question

Question

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

Answer 1

Answer #1

The expression which relates , induced emf and self inductance is

e = -L dI/ dt

L = e/ dI/dt

= -0.524 V/ ( 0.1 A-0.6 A)/0.597 s

= 0.6256 H

Answer 2

Similar Homework Help Questions

ogf induced in a coil is 0.72 V when the current in the coil changes to...

ogf induced in a coil is 0.72 V when the current in the coil changes to 1.6 A in 0.25 s. What is the self-inductance L of the coil? An alternating voltage with a peak voltage of 12 V and a frequency 60 Hz is connected in series to a resistor with resistance R : 10 ?, a capacitor with capacitance C-1000 ?F, and an inductor with inductance L 500 mH. Determine the root-mean-square current in the circuit. (a)
A coil has an induced emf of 89 x 10-2 V. If the current in the...

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?
An emf of 9.2 ✕ 10−3 V is induced in a coil while the current in...

An emf of 9.2 ✕ 10−3 V is induced in a coil while the current in a nearby coil is decreasing at a rate of 8.7 A/s. What is the mutual inductance of the two coils (in H)?

At the instant when the current in a coil is increasing at a rate of 0.25...

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?
12. An emf of 96.0 mV is induced in the windings of a coil when the...

12. An emf of 96.0 mV is induced in the windings of a coil when the current in a nearby coil is increasing at the rate of 1.20 A/s. What is the mutual inductance of the two coils? A. 12mH B. 20 mH C.40 mH D. 80 mH For items 13-15 consider the RL circuit shown at left with the following values ε-12.OV, R ; 6.0 Ω and Le 30.0 mH. Switch s L is set at position a at...
An emf of 20.0 mV is induced in a 460-turn coil when the current is changing...

An emf of 20.0 mV is induced in a 460-turn coil when the current is changing at the rate of 10.0 A/s. What is the magnetic flux through each turn of the coil at an instant when the current is 4.80 A? (Express the magnitude in µT · m2)

A coil has 460 turns and self-inductance 7.50 mH. The current in the coil varies with...

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?
What is the inductance of a coil if the coil produces an emf of 2.40 V...

What is the inductance of a coil if the coil produces an emf of 2.40 V when the current in it changes from -29.0 mA to +31.0 mA in 16.0 ms ?
What is the inductance of a coil if the coil produces an emf of 2.60 V...

What is the inductance of a coil if the coil produces an emf of 2.60 V when the current in it changes from -27.0 mA to +32.0 mA in 13.0 ms

10. A coil has 400 turns and self-inductance 4.80 mH. The current in the coil varies...

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?