PDF chapter test TRY NOW
- Make the circuit with a battery of four cells.
- Take about \(10\ cm\) long piece of steel wool.
- Tie a thin strand of steel wool between the nails.
- Switch off any fans in the room.
- Now pass the current through the circuit for sometime.
- Observe the strand of steel wool carefully.
- Note what happens.
Circuit connection
Does the strand of steel wool melt and break?
The strand of steel wool after some time.
What do you infer from the above experiment?
The thin strand of steel wire acts like a . The through the circuit and makes the . This is called as the of the electric current. When a large amount of current is passed through the circuit, the steel wire .
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