Question: What is the current flowing through a 20 Ω resistor when a voltage of 100 V is applied?

Options:

1. 5 A
2. 10 A
3. 15 A
4. 20 A

Correct Answer: 10 A

Solution:

Using Ohm\'s Law: I = V / R = 100 V / 20 Ω = 5 A.