What is the current through a resistor of 20.0 ohms if the voltage is 6.0 volts?

What is the current through a resistor of 20.0 ohms if the voltage is 6.0 volts?

• A. 0.20 amperes
• B. 0.30 amperes
• C. 0.40 amperes
• D. 0.50 amperes

Answer: (B)

To determine the current flowing through a resistor, you can apply Ohm's Law, which states that current (I) is equal to the voltage (V) divided by the resistance (R). The formula is expressed as: \[ I = \frac{V}{R} \] In this case, the voltage is 6.0 volts and the resistance is 20.0 ohms. Plugging these values into the formula, you get: \[ I = \frac{6.0 \text{ volts}}{20.0 \text{ ohms}} \] This calculation yields: \[ I = 0.30 \text{ amperes} \] This result indicates that the current through the 20-ohm resistor when subjected to a 6-volt source is 0.30 amperes. Therefore, this choice reflects the application of Ohm's Law correctly, leading to the accurate determination of current in an electrical circuit.

To determine the current flowing through a resistor, you can apply Ohm's Law, which states that current (I) is equal to the voltage (V) divided by the resistance (R). The formula is expressed as:

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

In this case, the voltage is 6.0 volts and the resistance is 20.0 ohms. Plugging these values into the formula, you get:

[ I = \frac{6.0 \text{ volts}}{20.0 \text{ ohms}} ]

This calculation yields:

[ I = 0.30 \text{ amperes} ]

This result indicates that the current through the 20-ohm resistor when subjected to a 6-volt source is 0.30 amperes. Therefore, this choice reflects the application of Ohm's Law correctly, leading to the accurate determination of current in an electrical circuit.