If the maximum voltage across a 100ohms resistor is 20V, then the maximum power it can dissipate is
- 5.00W
-
4.00W
- 2.00W
- 25W
The correct answer is: B
Explanation
P = \(\frac{V^2}{R}\)= \(\frac{20 \times 20}{100}\)
= 4W