Electricity unit

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

Tags

CCSS.HSF-LE.A.1B

What is the current in a circuit with 6 ohms of resistance and a battery containing 24 Volts?

• 1/4 A

• 144 A

• 4 A

• 0.4 A

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

If all of the switches were closed, how many paths can the current take?

• 4

• 6

• 8

• 10

If switch 1 and 2 were open, which device(s) would turn on?

• none

• A and B

• C, D, E, F, G

• all of them

Tags

NGSS.MS-PS2-3

If switch 3 and 6 were open, which device(s) would turn on?

• none

• A, B, C

• A, C, C, E, F

• all of them

If switch 5 and 6 were open, which device(s) would turn on?

• none

• A, B, C, D, F, G

• A, B, C, D, E

• all of them

If a circuit had 4 D-Cell batteries (each 1.5 V) and a lightbulb with resistance of 2 ohms, what is the current that flows through the circuit?

• 2 A

• 3 A

• 6 A

• 8 A

The following type of circuit has the current travelling in only one continuous pathway.

• series

• parallel

When a resistor in a series circuit is replaced by another resistor with an increased resistance value, the total circuit current will __________.

• stay the same

• decrease

• increase

• double in value