HARD
Upper Secondary: IGCSE
IMPORTANT
Earn 100

Draw the circuit symbols and write the truth table for the NAND logic gate.

Important Questions on Electric Circuits

HARD
Upper Secondary: IGCSE
IMPORTANT
Draw the circuit symbols and write the truth table for the NOR logic gate.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT

A fuse can be used to protect an electrical circuit. What problems may arise if a high current flows in a circuit? 

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

A fuse can be used to protect an electrical circuit. What happens in the fuse when a dangerously high current flows in the circuit?

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
A fuse can be used to protect an electrical circuit. What other device could be used to protect a circuit instead of a fuse?
HARD
Upper Secondary: IGCSE
IMPORTANT
A fuse can be used to protect an electrical circuit. Explain why a 13 A fuse is suitable for a circuit in which the greatest current is usually 10 A.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Draw the circuit symbol for the resistor.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Draw the circuit symbol for the lamp.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Draw the circuit symbol for the bell.