Electromagnetic Field Theory The force required to seperate two surfaces with a contact area measuring 5 cm by 6 cm, when flux density normal to the surface is 0.8 tesla, will be 764 N. 7640 N. 76.4 N. 76400 N. 764 N. 7640 N. 76.4 N. 76400 N. 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 be in unstable equilibrium. not be equilibrium. remain in stable equilibrium. will move out of the field of influence of two charges. be in unstable equilibrium. not be equilibrium. remain in stable equilibrium. will move out of the field of influence of two charges. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Unit of electric flux density is coulomb. coulomb / meter2. weber / meter2. farad / meter. coulomb. coulomb / meter2. weber / meter2. farad / meter. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The energy stored in the magnetic field in a solenoid 10 cm long and 4 cm diameter wound with 2000 turns of wire carrying a current at 20 amp, is 30 joules. 12 joules. 15 joules. 24 joules. 30 joules. 12 joules. 15 joules. 24 joules. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A magnetic vector potential is given by the expression A = (- cos x) (cos y) uz. The flux density at the origin is – 2 ux. 2 ux. – uy. 0. – 2 ux. 2 ux. – uy. 0. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two coils have inductances L1 = 1200 mH and L2 = 800 mH. They are connected in such a way that flux in the two coils aid each other and inductance is measured to be 2500 mH, then Mutual inductance between the coils is ___________ mH. 250. 150. 145. 225. 250. 150. 145. 225. ANSWER DOWNLOAD EXAMIANS APP
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