A simple electric circuit has the following properties:

resistance: 12 ohms
voltage: 96 V
Which circuit below has the same current?

(1 point)
Responses

resistance: 4 ohms
voltage: 96 V
resistance: 4 ohms voltage: 96 V

resistance: 12 ohms
voltage: 24 V
resistance: 12 ohms voltage: 24 V

resistance: 6 ohms
voltage: 48 V
resistance: 6 ohms voltage: 48 V

resistance: 8 ohms
voltage: 108 V

1 answer

To find the current in the initial circuit (with 12 ohms of resistance and 96 V of voltage), we can use Ohm's Law, which states:

\[ I = \frac{V}{R} \]

Where:

  • \( I \) is the current (in Amperes),
  • \( V \) is the voltage (in Volts),
  • \( R \) is the resistance (in Ohms).

For the given circuit:

\[ I = \frac{96 \text{ V}}{12 \text{ ohms}} = 8 \text{ A} \]

Now, we need to find which of the provided circuits yields the same current of 8 A.

  1. Resistance: 4 ohms, Voltage: 96 V \[ I = \frac{96 \text{ V}}{4 \text{ ohms}} = 24 \text{ A} \] (not the same)

  2. Resistance: 12 ohms, Voltage: 24 V \[ I = \frac{24 \text{ V}}{12 \text{ ohms}} = 2 \text{ A} \] (not the same)

  3. Resistance: 6 ohms, Voltage: 48 V \[ I = \frac{48 \text{ V}}{6 \text{ ohms}} = 8 \text{ A} \] (same)

  4. Resistance: 8 ohms, Voltage: 108 V \[ I = \frac{108 \text{ V}}{8 \text{ ohms}} = 13.5 \text{ A} \] (not the same)

The circuit that has the same current as the initial circuit is the one with:

Resistance: 6 ohms, Voltage: 48 V.