Question

The current through a 120 mh coil is changing at a rate of 150ma/s.The voltage induced across the coil is

Answer 1

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Answer 2

The voltage induced across the coil is 18 mV.

Explanation:

The induced voltage in the coil is given as

$V=L\frac{d i}{dt}$

Here, L is the inductance in Henries, V is the voltage across the coil and di/dt is the rate of change of current in Amperes per second, A/s.

Given L =mH and di/dt = 150 mA/s.

Substitute the given values, we get

$V=120\times10^-^3H\times150\times10^-^3A/s$

$V=18\times10^-^3V$

V = 18 mV.

Thus, the voltage induced across the coil is 18 mV.

#Learn More: Induced voltage.

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