Question

the inductance of a solenoid is 5 henry and its resistance is 5 ohm if it is connected to a 10 volt battery then time taken by the current to reach 9 by Tenth of its maximum will be​

Answer 1

• Time taken by the battery to reach 9/10 th of its maximum will be 2.3 seconds.

Given-

• Inductance of solenoid = 5 Henry
• Resistance of solenoid = 5 ohm
• Voltage of battery = 10 volt

We know that -

I = I₀ [ 1 - e^ -Rt/L] where R is the resistance, L is inductance and t is time.

So,

I = I₀ [ 1 - e^ -Rt/L] = 9/10

By putting the values of inductance and resistance we get-

I/I₀ = [1 - e^ -5t/5 ] = 9/10

e ^-t = 1/10

e^ t = 10

or t = 2.3 seconds

Answer 2

Answer:

Explanation:see the pic for your perfect answer