A magnetic needle is arranged at the end p of a solenoid PQ
a) when the switch is on the south pole of the magnetic needle move towards the end P. Then what is the direction of current at the end p of the solenoid?
b) write down the fact that helped you to find this direction?
c)suggest two methods to increase the mangnetic field strength of the solenoid?
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Answer:
C) Two ways to increase the strength of a solenoid are:
1) By increasing number of turns of insulated copper wire.
)By increasing current in the circuit.
Explanation:
I hope it helps
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