Electricity and Magnetism Review

What are the units for resistance?

• Amperes (A)

• Volts (V)

• Ohms (Ω)

• Watts (W)

A 12 V battery produces a current of 0.5 A. What is the power in the circuit? **Check your units**

• 24 Ω/ohms

• 24 W/watts

• 6 W/watts

• 6 P

What is the name for a positive charge?

• Proton

• Neutron

• Electron

• Newton

For this parallel circuit, the battery has a voltage of 120 V. What voltage would lightbulb #1 have?

• 120 V

• 120 A

• 40 V

• 40 A

If I have a NEUTRAL object that contains 12 electrons, how many protons should I have?

• 6

• 12

• 24

• 30

What resistance produces a current of 500 A with a voltage of 50 V, how would I solve for resistance?

• R=V/I

• R=V x I

• R= P x I

• R= P/I

Is this an image of a series or parallel circuit?

• series

• parallel

What is an example of an insulator?

• rubber

• copper

• iron

• water

◯ ⭕

The red dot is an electron and the white is a proton. Would these be attracting or repelling one another?

• Attracting

• Repelling

Would these poles (the S-S) be attracting or repelling each other?

• Attracting

• Repelling