Electromagnetic Field Theory A circular loop has its radius increasing at a rate of 2 m/s. The loop placed perpendicular to a constant magnetic field of 0.5 wb/m2. When the radius of the loop is 4 m. the emf induced in the will be 0.4 π V. Zero. 8 π V. 0.8 π V. 0.4 π V. Zero. 8 π V. 0.8 π V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An inductor designed with 400 turns coil wound on an iron core of 16 cm2 cross sectional area and with a cut of air gap length of 1 mm. The coil is connected to a 230 V, 50 Hz supply. Neglected coil resistance, core loss, iron reluctance and leakage inductance. Find the current in the inductor. 9.04 A. 2.28 A. 4.56 A. 18.08 A. 9.04 A. 2.28 A. 4.56 A. 18.08 A. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The field at any point on the axis of a current carrying coil will be at angle of 45° with the axis. parallel to axis. perpendicular to the axis. zero. at angle of 45° with the axis. parallel to axis. perpendicular to the axis. zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A wire 1 m long carries a current of 5A and is at an angle of 30o with B = 1.5 wb/m2. Magnitude of force is 2 N. 3.75 N. 5 N. 2.5 N. 2 N. 3.75 N. 5 N. 2.5 N. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory According to maximum power transfer theorem, the maximum power is absorbed by one network from another network when The impedance of one of the networks is half that of the other The impedance of one is equal to that of the other None of these The impedance of one is the complex conjugate of the other The impedance of one of the networks is half that of the other The impedance of one is equal to that of the other None of these The impedance of one is the complex conjugate of the other ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which antenna is a wideband antenna? Hertz antenna Marconi antenna Folded dipole None of these Hertz antenna Marconi antenna Folded dipole None of these ANSWER DOWNLOAD EXAMIANS APP
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