Question

During 0.1 s current in a coil increases from 1 a to 1.5




a. If inductance of this coil is 60 microh induced current in external resistance of 600

Answer 1

Dear Student,

◆ Answer -

I = 0.5 mA

● Explanation -

# Given -

I1 = 1 A

I2 = 1.5 A

dt = 0.1 s

L = 60 mH = 0.06 H

R = 600 ohm

# Solution -

EMF induced in the coil is calculated as -

e = L.dI/dt

e = L × (I2-I1) / dt

e = 0.06 × (1.5-1) / 0.1

e = 0.3 V

Current induced in the coil is given by -

I = e / R

I = 0.3 / 600

I = 5×10^-4 A

I = 0.5 mA

Therefore, current induced in the coil is 0.5 mA.

Hope this helps you...