When the power delivered by a 100 volt battery is 40 watts the equivalent resistance of the circuit is

Explanation

To find the equivalent resistance of the circuit when a 100 volt battery delivers 40 watts of power, we can use the formula for power in terms of voltage and resistance.

### Step-by-Step Solution:

1. **Understand the Power Formula**:
The power \( P \) delivered by a circuit can be expressed in terms of voltage \( V \) and resistance \( R \) using the formula:
\[
P = \frac{V^2}{R}
...