Ohms Ohms Ohms

What unit is used to measure resistance?

• Ohms

• Omega

• Volts

• Amps

What is the formula for ohms law?

• 1+2=3

• R X E = I

• V =I x R

• E= MC squared

What is the resistance of a lightbulb that experiences 9 Volts and 3 amps of current?

• 1/3 ohms

• 3 ohms

• 27 ohms

• 9 ohms

What is the voltage of a circuit with 4 ohms of resistance and 3 amps of current?

• 12 V

• 21 V

• 4/3 V

• 3/4 V

What is resistance measured in?

• Ω (ohm)

• V (volt)

• A (ampere)

• W (watt)

The mathematical relationship among Voltage, Current, and Resistance

• Faraday's Law

• Tesla's Law

• Edison's Law

• Ohm's Law

According to Ohm's Law, if you were to triple the voltage of a circuit without changing the resistance, what would happen to the flow of current?

• It would stay the same

• It would increase by 2x

• It would increase by 3x

• It would decrease by 3x

Speakers need a household voltage of 110 V to push a current of 5.5 A through them. What is the resistance of the speakers?

• 10Ω

• 20Ω

• 30Ω

• 40Ω

An IPod uses a standard 1.5 V battery. How much resistance is in the circuit if it uses a current of 0.01A?

• 50Ω

• 100Ω

• 150Ω

• 200Ω

A circuit contains a 1.5 volt battery and a bulb with a resistance of 3 ohms. Calculate the current.

• 0.5A

• 1A

• 1.5A

• 2A