PDF chapter test TRY NOW
1. Fill in the blanks:
Instead of fuses, this material is used nowadays.
2. Arrange the steps to show the effect of magnetism on electric current.
Answer variants:
The compass needle starts deflecting when the current passes through the circuit.
Wrap a small electric wire around the cardboard
Take a cardboard from an old matchstick box
Connect the ends of the wire to a cell through a switch and note the direction pointed by the compass needle
Place a tiny compass needle inside the wire on the cardboard
Bring the bar magnet near the compass needle and turn ON the switch.
When the switch is turned OFF, the compass needle comes back to its original position
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