A solenoid carries a current of 1 ampere and has 1000 turns. It has an area of cross- section of 2 cm2 and is 50 cm long. It is observed that the solenoid has the same magnetic moment as a bar magnet of length 20 cm. What is the pole strength of the bar magnet? O 2 Am 0 1 Am O 20 Am O 4 Am Q.
A solenoid carries a current of 1 ampere and has 1000 turns. It has an area of cross- section of 2 cm2 and is 50 cm long. It is observed that the solenoid has the same magnetic moment as a bar magnet of length 20 cm. What is the pole strength of the bar magnet? O 2 Am 0 1 Am O 20 Am O 4 Am Q.
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Transcribed Image Text:A solenoid carries a current of 1 ampere
and has 1000 turns. It has an area of cross-
section of 2 cm2 and is 50 cm long.
It is observed that the solenoid has the
same magnetic moment as a bar magnet of
length 20 cm. What is the pole strength of
the bar magnet?
O 2 Am
O 1 Am
O 20 Am
O 4 Am
Q.
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