Can you answer all the above questions? Thank you! Example Example A solenoid th

Question

Can you answer all the above questions? Thank you!

Example Example A solenoid that has a length equal to 25 cm, a radius equal to 2.0 cm, and 400 turns, in a region where there is a magnetic field of 0.04T. A 2.00-cm by 1.50-cm rectangular coil has 300 turns, and rotates in a region that has magnetic field of 0.4 T (a) What is the maximum emf generated when the coil Find the magnitude of the average emf induced in the solenoid if the magnetic field is reduced to zero in 1.4s. rotates at 60 Hz? (b) What must its angular speed be to generate a maximum emf of 110V?

Explanation / Answer

As the magnetic field decreasing so as per Lenz law emf must be setup in a way opposes to its cause.

e= NA dB/t= 400*pi*(.022)*(0.04-0)/1.4= 0.01435 V = 14.35 mV

According to Chegg guidelines I can answer one question at a time, so please post other questions separately...

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