Electromagnetic Field Theory When a conductor moves in the field, so that it makes an angle 8 with the lines of flux, the force F is given as : F = Bl sin2 0. No Yes No Yes ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which statement does not say that electrostatic field is conservative? If is gradient of a scalar potential. If the curl of E is identically zero. The potential difference between two points is zero. The work done in a closed path inside the fields is zero. If is gradient of a scalar potential. If the curl of E is identically zero. The potential difference between two points is zero. The work done in a closed path inside the fields is zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An emf of 16 volts is induced in a coil of inductance 4 H. The rate of change of current must be 16 A / s. 64 A / s. 4 A / s. 32 A / s. 16 A / s. 64 A / s. 4 A / s. 32 A / s. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic current is composed of which of the following? Only displacement current. None of these Only conduction current. Both conduction and displacement current. Only displacement current. None of these Only conduction current. Both conduction and displacement current. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A conductor of length 100 cm moves at right angles to a magnetic field of flux density 1.5 Wb/m2 with a velocity of 50 m/s. The induced emf in the conductor will be 75 V. 37.5 V. 50 V. 150 V. 75 V. 37.5 V. 50 V. 150 V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A copper disc is rotated rapidly below a freely suspended magnetic needle. The magnetic needle starts rotating with velocity equal to that of disc and in the opposite direction. less than that of disc but in opposite direction. equal to that of disc and in the same direction. less than that of disc and in the same direction. equal to that of disc and in the opposite direction. less than that of disc but in opposite direction. equal to that of disc and in the same direction. less than that of disc and in the same direction. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS