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The magnetic flux near the axis and in...

The magnetic flux near the axis and inside the air core solenoid of length `60 cm` carrying current 'f' is `1.57 xx 10^(-6) Wb`. Its magnetic moment will be (cross-sectional area of a solenoid is very small as compared to its length.
`mu_(0)= 4pi xx 10^(-7) `SI unit )

A

0.25A

B

0.50A

C

0.75A

D

1A

Text Solution

Verified by Experts

The correct Answer is:
C
Magnetic induction inside the solenoid.
`B=(m_(0)NI)/(L)`
Magnetic flux, `phi=BA`
`=(mu_(0)NIA)/(L)`
Magnetic moment `=NIA=(phiL)/(mu_(0))`
`=(1.57xx10^(-6)xx0.6)/(4xx3.14xx10^(-7))`
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Knowledge Check

  • The range flux near the axis and inside the air core solenoid of length 60 cm carrying current 'I' is 1.7 xx 10^(-6)Wb . Its magnetic moment will be (cross sectional area of a solenoid is very small as comapred to its length, mu_0=4pi xx 10^(-7)SI unit)

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