A simple electric circuit has the following properties:

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

(1 point)

A. resistance: 12 ohms voltage: 24 V

B. resistance: 8 ohms voltage: 108 V

C. resistance: 4 ohms voltage: 96 V

D. resistance: 6 ohms voltage: 48 V

1 answer

To find out which circuit has the same current, we can use Ohm's Law, which states that:

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

where:

  • \( I \) is the current,
  • \( V \) is the voltage, and
  • \( R \) is the resistance.

First, let's calculate the current for the given parameters:

Given:

  • Resistance \( R = 12 \) ohms
  • Voltage \( V = 96 \) V

Using Ohm's Law:

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

Now we need to calculate the current for each of the options:

A.

  • Resistance: 12 ohms
  • Voltage: 24 V

\[ I = \frac{24 , \text{V}}{12 , \text{ohms}} = 2 , \text{A} \]

B.

  • Resistance: 8 ohms
  • Voltage: 108 V

\[ I = \frac{108 , \text{V}}{8 , \text{ohms}} = 13.5 , \text{A} \]

C.

  • Resistance: 4 ohms
  • Voltage: 96 V

\[ I = \frac{96 , \text{V}}{4 , \text{ohms}} = 24 , \text{A} \]

D.

  • Resistance: 6 ohms
  • Voltage: 48 V

\[ I = \frac{48 , \text{V}}{6 , \text{ohms}} = 8 , \text{A} \]

Now let's summarize the currents calculated:

  • Current for A: 2 A
  • Current for B: 13.5 A
  • Current for C: 24 A
  • Current for D: 8 A

The circuit that has the same current (8 A) as the original circuit is:

D. resistance: 6 ohms voltage: 48 V