An LR circuit having `L = 4.0 H, R = 1.0 Omega and epsilon = 6.0 V` is switched on at `t = 0`. find the power dissipated in joule heating at `t = 4.0 s`.

Explanation

To find the power dissipated in an LR circuit at a given time, we can follow these steps:

### Step 1: Identify the given values
We have the following values from the problem:
- Inductance, \( L = 4.0 \, H \)
- Resistance, \( R = 1.0 \, \Omega \)
- Voltage, \( \epsilon = 6.0 \, V \)
- Time, \( t = 4.0 \, s \)
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