Question

A 20 henry inductor coil is connected to a 10 ohm resistance

Answer 1

hi ....

A 20 henry inductor coil is connected 10ohm resistance.

Whats the question ?

what is the thing that should be found ?

plz post the correct question again!

hope this helps you !

Answer 2

Hey Dear,

Complete question is added in the image.

● Answer -

t = 2 ln(2)

● Explanation -

Let t be time at which rate of energy dissipation equals rate of energy storage.

In inductor-resistor circuit -

I² × R = I × L × di/dt

R × [1-e^(-t/2)] × E/R = L × [e^(-t/2)] × E/R × R/L

[

1-e^(-t/2) = e^(-t/2)

1 = 2e^(-t/2)

1/2 = e^(-t/2)

e^(t/2) = 2

Taking antilog,

t/2 = ln(2)

t = 2 ln(2)

Hope this helps you. Thanks for asking..