Understanding Ohm's Law

What does Ohm's Law state about the relationship between voltage, current, and resistance?

• Voltage is the ratio of current to resistance.

• Voltage is the sum of current and resistance.

• Voltage is the product of current and resistance.

• Voltage is the difference between current and resistance.

If a circuit has a current of 0.5 amps and a resistance of 10 ohms, what is the voltage across the circuit?

• 10 volts

• 5 volts

• 15 volts

• 20 volts

In a circuit with a voltage drop of 12 volts and a resistance of 4 ohms, what is the current flowing through the circuit?

• 6 amps

• 2 amps

• 4 amps

• 3 amps

How can Ohm's Law be used to find the total voltage in a circuit with multiple resistors?

• By adding the individual voltages across each resistor.

• By multiplying the total current by the equivalent resistance.

• By dividing the total resistance by the total current.

• By subtracting the smallest resistance from the largest voltage.

In a circuit with a total resistance of 8 ohms and a total current of 2 amps, what is the total voltage?

• 12 volts

• 20 volts

• 8 volts

• 16 volts