DAY 5 – DAW February

Magnetic shell, uniformly magnetized sphere; Ferromagnetic materials, hysteresis, energy loss. Biot-Savart law, Ampere’s law,

Questions:

Q 1. Two solenoids have 500 and 800 turns of wire and are placed co-axially close to each other. A current of 5.0 A in the first solenoid produces an average flux of $200\mu Wb$ though its each turn and a flux of $100\mu Wb$ through each turn of the second solenoid. Find the self-inductance of the first solenoid and the mutual inductance of solenoids. [10 marks]

Q 2. In the circuit diagram shown below, the voltmeter reads 50 volts when it is connected across the 400 $\Omega$ resistance. Calculate what the same voltmeter will read when connected across the 300 $\Omega$ resistance. [10 marks]

Video Solution at 11 pm