Ohm's Law Quiz

What does Ohm's Law describe?

• The relationship between voltage, current, and resistance

• The relationship between power and energy

• The relationship between charge and mass

• The relationship between frequency and wavelength

What is the unit of voltage?

• Amperes

• Ohms

• Volts

• Watts

What does the 'I' in the Ohm's Law equation V=IR represent?

• Power

• Resistance

• Voltage

• Current

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

• It increases

• It decreases

• It remains the same

• It becomes zero

What is the formula for calculating resistance using Ohm's Law?

• R = V*I

• R = V/I

• R = I + V

• R = I/V

What does resistance measure in a circuit?

• The pressure of the voltage

• The opposition to current flow

• The energy consumed

• The flow of electrons

In the equation V=IR, what does 'R' stand for?

• Resistance in ohms

• Resistance in amperes

• Resistance in volts

• Resistance in watts

What happens to the current if the voltage is increased while resistance remains constant?

• The current increases

• The current becomes negative

• The current decreases

• The current remains the same

What is the Ohm's Law Triangle used for?

• To determine the efficiency of a circuit

• To measure electrical energy

• To calculate power in a circuit

• To visualize the relationship between voltage, current, and resistance

If a circuit has a voltage of 12V and a resistance of 4Ω, what is the current?

• 12A

• 48A

• 3A

• 4A