A 12-V battery is connected to a light bulb with a resistance of 2Ω. What is the current in the circuit?
Using Ohm's Law, we can solve for the current (I) by dividing the voltage (V) by the resistance (R):
I = V / R
I = 12 V / 2Ω
I = 6 A
Therefore, the current in the circuit is 6 amperes.