Question

A student, while making a circuit to make a bulb glow using a dry cell connected the plastic covering of the wire to the cell instead of the metal wire inside it will current flow in the circuit why ?

Answer 1

The current will not flow through the plastic as it is a bad conductor of electricity which has limited free ions for flow of current.

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Hope it helps you.

Answer 2

Answer:

No, current will not flow in the circuit when the dry cell is connected to the plastic covering of the wire.

Explanation:

• Plastics are insulators and are used as an insulating material to cover the metal wire in order to prevent any leakage which can lead to short circuits and shocks.
• Since metals are good conductors of current, the plastic covering at the tip of the wire should be removed before making any connection so as to make the metal wires to contact directly.