Understanding Voltage, Current, and Resistance

What is the unit of measurement for voltage in an electric circuit?

• Amperes

• Volts

• Ohms

• Watts

In the water analogy for electric circuits, what does the flow of water represent?

• Voltage

• Current

• Resistance

• Power

• 2 Amperes

• 3 Amperes

• 4 Amperes

• 6 Amperes

Which component in an electric circuit is used to measure the current?

• Voltmeter

• Ammeter

• Resistor

• Battery

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

• The current increases

• The current decreases

• The current remains the same

• The current becomes zero

• 5 Volts

• 7 Volts

• 10 Volts

• 12 Volts

What is the role of a resistor in an electric circuit?

• To increase the voltage

• To decrease the current

• To store electrical energy

• To convert electrical energy into light

• Voltage

• Current

• Resistance

• Power

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

• The current is halved

• The current remains the same

• The current is doubled

• The current is quadrupled

Which of the following is a correct representation of Ohm's Law?