MHT CET Physics question
Not in JEE Advanced syllabus
A solenoid has a core of a material having relative permeability 350. The windings of the solenoid are insulated from the core and carry a current of 1 A. If the number of turns is 500 per metre, the magnetisation is
Answer: (A)
Solution
and 10^{5}$≈1.8×10^{
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