Electricity 1.2.4

What is current 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

Tags

CCSS.8.EE.C.7B

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

Tags

CCSS.6.EE.B.7

How much voltage would be necessary to generate 10 amps of current in a circuit that has 5 ohms of

resistance?

• 10V

• 50V

• 100V

• 150V

When only one lightbulb blows out, an entire string of decorative lights goes out. The lights in this string must be connected in

• series with multiple current pathways

• series with one current pathway

• parallel with multiple current pathways

• parallel with one current pathway

The diagram above represents an electric circuit consisting of four resistors and a 12-volt battery.

What is the current measured by ammeter A shown in the diagram?

• 4.0 A

• 72 A

• 2.0 A

• 500 mA

In a parallel circuit, if one connection is broken, all of the connections stop working.

• True
• False

What is the total resistance (RT) across this circuit?

• 3 kΩ

• 10 kΩ

• 13 kΩ

• 18 kΩ

What is a conductor?

• A material that allows electricity to go through it
• The area of a conductor through which a current is able to move
• A battery or other device which provides energy for a curcuit
• When there is only one path for the electricity to flow