- #1

Jahnavi

- 848

- 102

## Homework Statement

## Homework Equations

## The Attempt at a Solution

Self inductance L of a solenoid = μN

^{2}S/l

N = Total number of turns

l = Length of the solenoid

S = Cross sectional area of the solenoid

From the language of the problem statement I am assuming that S and N of the two solenoids are same .This makes" l " different for the two solenoids .

Self inductance L will be different .

This means for equal currents magnetic potential energy will also be different .

Now since the two solenoids are of different lengths and diameter of the wires are also different , resistance of the two coils will also be different .This means for equal currents , power dissipated will also be different .

Since both L and R are different , then time constant will also be different .

So to me it looks like all the statements are correct i.e option 4)

Is that correct ?