Welcome to the Quiz!

This quiz contains 5 questions from a mix of 1 subtopics.

Which instrument is used to measure the current in the circuit?

variable resistor

power supply

ammeter

voltmeter

0

/

1

Which of the following components would result in a I-V graph which is a straight line through the origin?

filament lamp

diode

resistor

0

/

1

Which of the following components allows current to flow in the positive direction but not in the negative direciton?

resistor

filament lamp

diode

0

/

1

Draw the I-V characteristic for a filament lamp.

0

/

2

Why is it important to turn the power supply off between readings?

to avoid getting an electric shock when moving the variable resistor

to prevent the temperature of the circuit from increasing

to prevent wasting electricity

turning off the circuit would make all the other results invalid and you would need to start again

0

/

1