Question: What is the current through a 15 ohm resistor connected to a 45V source?

Options:

1. 3 A
2. 2 A
3. 1 A
4. 4 A

Correct Answer: 3 A

Solution:

Using Ohm\'s Law, I = V/R. Here, I = 45V / 15Ω = 3 A.