Question

A circuit consists of a 12V battery connected in series with a resistor and an ammeter, as shown in the diagram below. The resistance of the resistor is 6Ω. The ammeter is connected to measure the electric current passing through the circuit. Calculate the magnitude of the electric current passing through the circuit.

A) 0.5 A B) 1 A C) 2 A D) 3 A

Explanation

To calculate the magnitude of the electric current passing through the circuit, we can use Ohm's Law, which states that the electric current (I) is equal to the voltage (V) divided by the resistance (R):

I = V / R

Here, the voltage provided by the battery is 12V and the resistance of the resistor is 6Ω. Plugging these values into the equation, we get:

I = 12V / 6Ω I = 2 A

Therefore, the magnitude of the electric current passing through the circuit is 2 A.

The correct answer is (C) 2 A.