Physics Quiz on Resistors and Voltage

What is the main challenge presented in the 2021 AQA physics paper question?

• Finding the voltmeter reading

• Determining the resistivity of the material

• Calculating the power supply voltage

• Measuring the diameter of the resistors

How does the diameter of resistor Y compare to that of resistor X?

• It is three times the diameter of X

• It is half the diameter of X

• It is twice the diameter of X

• It is equal to the diameter of X

What is the relationship between the resistances of X and Y?

• RX is four times RY

• RX is half of RY

• RX is equal to RY

• RX is twice RY

According to Kirchhoff's Second Law, what should the sum of the voltages across X and Y equal?

• 12 volts

• 6 volts

• 30 volts

• 24 volts

If the voltage across Y is 6 volts, what is the voltage across X?

• 24 volts

• 18 volts

• 12 volts

• 6 volts