Electromagnetic Field Theory A conductor of length 1 metre moves at right angles to magnetic field of flux density 1 Wb/m2 with a velocity of 25 m/s. The induced emf in the conductor will be 75 V. 25 V. 100 V. 50 V. 75 V. 25 V. 100 V. 50 V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A metal sphere with 1 m radius and a surface charge density of 10 coulombs/m2 is enclosed in a cube of 10 m side. The total outward electric displacement normal to the surface of the cube is 5 C. 10 C. None of above. 40π C. 5 C. 10 C. None of above. 40π C. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A circular ring is carrying uniformly distributed charge q and a point charge – Q on the axis of the ring. The magnitude of dipole moment of the charge system is (Assume distance between centre of ring and point charge is d and radius of ring R) QR. QR2/d. Q√(R2 + d2). QD. QR. QR2/d. Q√(R2 + d2). QD. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following represents ohms law J = σE I = GV V = RI All of these J = σE I = GV V = RI All of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A point pole has a strength of 4π × 10-4 weber. The force in newtons on a point pole of 4π × 1.5 × 10-4 weber placed at a distance of 10 cm from it will be 15 N. 20 N. 3.75 N. 7.5 N. 15 N. 20 N. 3.75 N. 7.5 N. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory For a linear electromagnetic circuit, which of the following statement is true? Co-energy is zero. Field energy is lesser than the co-energy. Field energy is equal to the co-energy. Field energy is greater than the co-energy. Co-energy is zero. Field energy is lesser than the co-energy. Field energy is equal to the co-energy. Field energy is greater than the co-energy. ANSWER DOWNLOAD EXAMIANS APP
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