Resistance and Ohm's Law

What size resistor would produce a 3 Amp current flow with a 12 Volt battery

• 1 Ohm
• 3 Ohms
• 4 Ohms
• 12 Ohms

What is resistance measured in?

• Ω (Ohms)
• V (Volts)
• A (Amps)
• W (Watts)

What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?

• 25 V
• 10 V
• 2.5 V
• 0.4 V

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

What word means how hard it is for electrons to flow through.

• Current
• Voltage
• Resistance
• Power

What resistance is needed to cause a 20A current flow because of a 100V battery?

• 0.2Ώ
• 2000Ώ
• 120Ώ
• 5Ώ

Resistance is

• opposite to the flow of charge

• opposition to the flow of charge

• opposition to the flow of current

• opposition to the flow of electrical current

Resistance is affected by

(chose all the correct answers)

• The colour of the resistor

• The material that the resistor is made out of

• The thickness or length of the resistor

• The temperature of the resistor in the circuit