Electricity - Ohm's Law

What size resistor would produce a 1.5 Amp current flow with a 12 Volt battery

• 0.125 Ohm

• 18 Ohms

• 8 Ohms

• 12 Ohms

How many Volts would we need to produce a current flow of 12 Amps through a 9 Ohm resistor

• 9 volts

• 0.75 volts

• 1.3333 volts

• 108 volts

What unit is used to measure resistance?

• Ω (Ohms)

• V (Volts)

• A (Amps)

• W (Watts)

What unit is used to measure electrical current?

• Ω (Ohms)

• V (Volts)

• A (Amps)

• W (Watts)

What voltage is needed to cause a 5A current flow through a 10Ω resistor?

• 5 V

• 0.5 V

• 50 V

• 2 V

What resistance is needed to cause a 20A current flow because of a 12 V battery?

• 1.67 Ώ

• 20 Ώ

• 240 Ώ

• 0.6 Ώ

What is the power output of a light bulb when a current of 0.75 A and 120V electrical potential difference runs through it?

• 0.00625 W

• 120 W

• 90 W

• 160 W

What is the power of a 130 V bulb with 0.87 A through it?

• 113 W

• 149 W

• 0.0067 W

• 0.67 W

What is the current flowing through a 240 V bulb with a power output of 1000 W?

• 0.240 A

• 4.2 A

• 240,000 A

• 1000 A

This is an example of a/an _______ circuit

• open

• series

• parallel

• rectangular