Find the voltage induced across a coil of 22mH if the rate of change of current through the coil is...

a.) 1 A/s

b.) 1 mA / ms

c.) 2 mA / 10 μs

Question

Find the voltage induced across a coil of 22mH if the rate of change of current through the coil is...a.) 1 A/sb.) 1 mA / msc.) 2 mA / 10 μs

Petros H. · Accepted Answer

According to Faraday’s Law of induction ℇ=-B∆I/∆t, where ℇ is induced voltage, ∆I/∆t rate of change of current, and B inductance of the coil.

Now, you can find induced voltage, for example, if B=22 mH=22*10^-3 H, ∆I/∆t =1 mA/msc=1A/s

ℇ=-(22*10^-3 H)( 1A/s)=-22 mV

Find the voltage induced across a coil of 22mH if the rate of change of current through the coil is...