GCSE Current and PD in series & parallel

What is the unit of resistance?

• volt
• ampere
• watt
• ohm

What is the unit of current?

• volt

• ampere

• watt

• ohm

What is the unit of potential difference?

• volt

• ampere

• watt

• ohm

A 50 cm long wire has a resistance of 40 ohms, it is cut down to 10 cm, what is the resistance of the 10 cm wire?

• 20 ohms
• 16 ohms
• 8 ohms
• 4 ohms

This is the symbol for a

• LDR

• Diode

• LED

• Open switch

What is the symbol for a resistor?

• Circle

• Straight Line

• Rectangle

• Triangle

The ammeter reads 0.1 A and the voltmeter reads 6 V. Calculate the resistance of the lamp.

• 6 ohms

• 60 ohms

• 0.6 ohms

• 0.017 ohms

What type of circuit is shown in the image?

What type of circuit is shown in the diagram?

Each lamp has a resistance of 10 ohms and the cell has a potential difference of 10 V. What current flows in the circuit shown?

• 1 A

• 0 A

• 2 A

• 0.5 A