Question

The voltage in a battery is 9 volts. The resistance is 3 ohms.

What is the current?


6 amps

3 amps

12 amps

27 amps

Answer 1

To find the current (I) in a circuit, you can use Ohm's Law, which states:

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

Where:
- \( I \) is the current in amperes (amps),
- \( V \) is the voltage in volts,
- \( R \) is the resistance in ohms.

In this case:
- Voltage (\( V \)) = 9 volts
- Resistance (\( R \)) = 3 ohms

Now, plug in the values:

\[ I = \frac{9 \text{ volts}}{3 \text{ ohms}} = 3 \text{ amps} \]

So the current is **3 amps**.