Circuits Practice

Which lightbulb(s) is brightest?

• A

• B

• C and D

• E

Which lightbulb(s) is dimmest

• A

• B

• C and D

• E

Rank the currents in the circuits

• 1 > 2 > 3

• 2 > 3 > 1

• 2 > 1 > 3

• 3 > 2 > 1

Tags

NGSS.HS-PS2-5

Which battery will run out of usable energy first?

• 1

• 2

• 3

• All at the same time

Four resistors and a 6-V battery are arranged as shown in the circuit diagram. The largest potential difference is across which resistor?

• 10 ohm

• 20 ohm

• 30 ohm

• 60 ohm

A battery, a switch S, and four identical lightbulbs A, B, C, and D are arranged in a circuit as shown. How does the current in lightbulb A change, if at all, when the switch is closed?

• It does not change

• It increases

• It decreases

• Cannot be determined

What is the current in each of hte 5 ohm resistors?

• 4 A Up

• 12 A

• 2 A

• 6 A

In the circuit shown, the current through the ammeter is 2 A. What is the current through the resistor of unknown resistance R ?

• 6 A

• 4 A

• 3 A

• The current cannot be determined without knowing the value of R.

What is the current in the 10 ohm resistor??

• 1.33 A

• 2 A

• 0.67 A

• 1 A

Tags

NGSS.HS-PS3-1