Electromagnetic Field Theory Two coils are coupled in such a way that the mutual inductance between them is 20 mH. If the inductances of the coils are 40 mH and 50 mH respectively, the coefficient of coupling is 0.577. 0.477. 0.447. 0.01. 0.577. 0.477. 0.447. 0.01. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Midway between two equal and similar charges, a third equal and similar charge is placed, then this third charge will remain in stable equilibrium. be in unstable equilibrium. not be equilibrium. will move out of the field of influence of two charges. remain in stable equilibrium. be in unstable equilibrium. not be equilibrium. will move out of the field of influence of two charges. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In a lossless medium the intrinsic impedance η = 60π and μr = 1. The relative dielectric constant εr shall be 2. 1. 8. 4. 2. 1. 8. 4. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The property of the coil by which a counter emf is induced in it when the current through the coil changes is known as self inductance. capacitance. mutual inductance. series aiding inductance. self inductance. capacitance. mutual inductance. series aiding inductance. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Find H for centre of solenoid having finite length d = 1 unit where N = no of turns = 500, I = 2 A. 1000. 100. None of these. 500. 1000. 100. None of these. 500. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory According to Coulomb’s law, the force of attraction or repulsion, between to electrical charges is inversely proportional to the square of the distance between them. directly proportional to the square of the distance between them. directly proportional to the distance between them. inversely proportional to the distance between them. inversely proportional to the square of the distance between them. directly proportional to the square of the distance between them. directly proportional to the distance between them. inversely proportional to the distance between them. ANSWER DOWNLOAD EXAMIANS APP
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