Electromagnetic Field Theory
A coil of 300 turns is wound on a non magnetic core having a mean circumference of 300 mm and a cross sectional area of 300 mm2. The inductance of the coil corresponding to a magnetizing current of 6 A will be

 3.768 μH.
  113.04 μH.
 37.68 μH.
 1.1304 μH.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
Two identical circular coils, one closed and another is little split (not enclosed) are placed in an uniform magnetic field which decrease at a constant rate. If the plane to the coils are perpendicular to the field which of the following statements is true?

 An emf is induced in split coil.
 Joule heating does not occur in each of the coils.
 An emf is induced in both coils.
 Equal joule heating occurs in both coils.

ANSWER DOWNLOAD EXAMIANS APP