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Question
To replace a steel safety pin connected in a circuit as shown, which among the following should be used to complete the circuit?
To replace a steel safety pin connected in a circuit as shown, which among the following should be used to complete the circuit?
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Solution
The correct option is D Aluminium foil
Steel and aluminium are good conductors of electricity and allow the current to pass through them easily. So, steel pin can be replaced with aluminium foil to complete the circuit.
However, plastic, rubber, and wood are poor conductors of electricity and do not allow an electric current to pass through them easily. Hence, they cannot be used to replace steel to complete the circuit.
Steel and aluminium are good conductors of electricity and allow the current to pass through them easily. So, steel pin can be replaced with aluminium foil to complete the circuit.
However, plastic, rubber, and wood are poor conductors of electricity and do not allow an electric current to pass through them easily. Hence, they cannot be used to replace steel to complete the circuit.
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