Quiz 2: Ohms Law | Splices and Joints

What is the unit of measure of current?

• Ampere

• Current

• Voltage

• Ohms

What is the unit of measure for resistance?

• Ampere

• Voltage

• Ohms

• Watts

If the resistance in a circuit is 10Ω and the current is 2A, what is the voltage?

• 5V

• 10V

• 20V

• 40V

Which of the following statements is true according to Ohm's Law?

• Current is directly proportional to voltage.

• Resistance is inversely proportional to voltage.

• Voltage is inversely proportional to current.

• Resistance is directly proportional to current.

If the voltage across a resistor is doubled, what happens to the current?

• It remains the same.

• It is halved.

• It is doubled.

• It is reduced to zero.

A circuit has a voltage of 12V and a current of 3A. What is the resistance?

• 4Ω

• 6Ω

• 12Ω

• 36Ω

If the resistance in a circuit increases, what happens to the current, assuming the voltage remains constant?

• The current increases.

• The current decreases.

• The current remains the same.

• The current doubles.

A circuit has a voltage of 9V and a resistance of 3Ω. What is the current?

• 3A

• 6A

• 12A

• 27A

What does Ohm’s Law state?

• Voltage = Current × Resistance

• Current = Voltage × Resistance

• Resistance = Voltage × Power

• Power = Current × Voltage

Which of the following formulas is used to calculate resistance?

• R = V/I

• R = P/I

• R = VI

• R = I/V