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A solenoid has core of a material with relative permeability 500 and it carries a current of 1A. The number of turns of the solenoid is 500 per metre. The intensity of magnetization of the material is nearly
detailed solution
Correct option is B
n = 500 turns/m, i = 1 A, μr=500Magnetic field strength H=ni=500×i=500 A/mAs μr=1+χ, magnetic susceptibility K=μr−1=500−1=499∴ Magnetization I=χH=499×500 Am−1=2.5×105Am−1Talk to our academic expert!
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A solenoid of 1 . 5 metre length and 4 .0 cm diameter possesses 10 turns per cm. A current of 5 ampere is flowing through it. The magnetic field at axis inside the solenoid is (Given: weber/amp metre)
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