Y9 Electric Circuits Quiz

What is component P in the circuit shown in Figure 1?

• Resistor

• Switch

• Battery

• Diode

The ammeter in the circuit measures _______.

• Charge

• Current

• Energy

• Potential difference

The voltmeter in the circuit measures _______.

• Charge

• Current

• Energy

• Potential difference

How will increasing the resistance of the variable resistor affect the current in the circuit?

• Decreases

• Stays the same

• Increases

• None of the above

How will increasing the resistance of the variable resistor affect the potential difference across the lamp?

• Decreases

• Stays the same

• Increases

• None of the above

How will increasing the resistance of the variable resistor affect the total resistance of the circuit?

• Decreases

• Stays the same

• Increases

• None of the above

A charge flow of 15 coulombs passed through the filament lamp in a time of 60 seconds. Calculate the current in the lamp.

• 0.25 A

• 0.50 A

• 0.75 A

• 1.00 A

When the current in the filament lamp is 0.12 A, the potential difference across the lamp is 6.0 V. Calculate the resistance of the filament lamp.

• 50 Ω
• 0.72Ω

• 0.02Ω

• 7.2Ω

What type of error does the ammeter display?

• A positive error

• A random error

• A zero error

Complete the sentence. The three resistors in the above diagram are connected in ______________ with the power supply.

• A) series

• B) parallel

• C) series-parallel

• D) none of the above