Ohm's Law

What is Resistance?

• The flow of electrons
• Electric potential difference
• A battery
• The ability to reduce the flow of electrons

The mathematical relationship among Voltage, Current, and Resistance

• Faraday's Law
• Tesla's Law
• Edison's Law
• Ohm's Law

If the Voltage is increased and the resistance stays the same, Current will

• Increase
• Decrease
• Stay the same
• X

If the Voltage stays the same and Resistance is increased, Current will 

• Increase
• Decrease
• Stay the same
• X

As the voltage increases, the current...

• increases

• decreases

• stays the same

What would happen if in a circuit, the resistance increases but the voltage stays the same?

• The current would decrease

• The current would increase

• The voltage would decrease

• The voltage would increase

Which of the following actions would increase the current through a circuit component?

• placing another identical component in series in the circuit

• increasing the resistance of the component

• increasing the voltage across the component

• decreasing the power in the component

Based on Ohm’s law, which of the following statements explains what must happen when the voltage across a resistor is decreased?

• The current through the resistor increases.

• The resistance of the resistor decreases.

• The resistance of the resistor increases.

• The current through the resistor decreases.

Which of the following represents the opposition presented to the current by a material or device, measured in ohms?

• current

• resistance

• voltage

• electricity

Which of the following represents the rate of the flow of electricity, expressed in unit of amps?

• current

• circuit

• voltage

• resistance

Tags

NGSS.HS-PS2-5