Question

5) A solenoid comprises 500,000 turns of wire and is 10 cm long and 1.0 cm in radius.
a) Find the resultant magnetic field inside the coil if a current of 1 μA flows through the wire.
b) How would this change if the core is filled with mumetal (μ = 300 μ0 ).

6) The solenoid of Q5 is placed in a region where the perpendicular magnetic field strength is varying sinusoidally by 20 μT at a rate of 50 Hz.
Find the resultant emf induced in the coil.​​​​​​​  #### Earn Coins

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