Question

(iv) The drawing below shows a part of an electric cable and a plug.
copper wire
insulating material
The wire shown above, on heating reacts with a gas in air to form a chemical
compound X. Identify the gas and the compound X formed.​

Answer 1

Answer:

In the above circuit one end of the bulb is connected to the battery and another end to the safety pin.

But the other end of the battery is not connected to the safety pin. Therefore there will be no flow of current as the switch is in “OFF” position.

This shows the circuit is not complete.

Circuit diagram of the above electric circuit will be:

Physics Class 7 Electric Circuits Electric Circuit 4

Answer 2

Answer:

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