9.3 Circuits Test Review

What is the equivalent or total resistance (R_e) across this circuit?

• 3 kΩ

• 10 kΩ

• 13 kΩ

• 18 kΩ

Which resistor has the greatest voltage across it? If these were light bulbs, which would be the brightest?

• R₂, R₂

• R₁, R₁

• R₂, R₃

• R₃, R₂

What is the equivalent resistance in this branch of a circuit?

• 45Ω

• 256Ω

• 8Ω

• 73Ω

What is the voltage across R5 and the current through R7?

• 0.5 V, 0.125 A

• 1 V, 0.5 A

• 0.5 V, 0.75 A

• 1 V, 0.125 A

According to the junction rule, what must I₁ be?

• 3.5 A

• 7.5 A

• 2 A

• 5.5 A

Which ammeter is reading the highest current?

• 1

• 2

• they are both equal

• 4

Devices in a parallel circuit receive

• equal current but different voltage

• equal voltage but different current

• equal voltage and equal current

• different voltage and different current

Devices in a series circuit receive

• Equal current but different voltage

• Equal voltage but different current

• Equal voltage and equal current

• different voltage and different current

Adding an extra bulb in a parallel circuit makes the bulb...

• stay the same brightness
• get dimmer
• get brighter
• blow

A 7 ohm, a 9 ohm and a 14 ohm resistor are connected in series with a 24 ohm and 20 ohm resistor in parallel with each other. If the voltage source is 120 V, what colour is the table?

• Red

• Green

• Blue

• Brown