ElectroMagnetic InductionHard
Question
The hysteresis loss per cycle per unit volume for soft iron is 103 joule. The density of iron is 7.5 gm/cm2 and its specific heat is 100 cal/kg-oC. If a specimen of soft iron is subjected to an alternating magnetic field of frequency 50 Hz, then rise per minute in its temperature will be :-
Options
A.3.95oC
B.2.95oC
C.1.95oC
D.0.95oC
More ElectroMagnetic Induction Questions
A coil of copper wire is connected in series with a bulb, a battery and a switch. When the circuit is completed the bulb...If value of R is changed, then : -...Which of the following is correct for periodic electromagnetic induction :-...Two coils are at fixed locations. When coil 1 has no current and the current in coil 2 increases at the rate 15.0 A/s th...To protect a sensitive instrument from external megnetic jerks, it should be placed in a container made of :-...