Electromagnetic Field Theory Two straight parallel conductors carry equal currents in opposite direction. The force between them is zero. attractive. repulsive. none of above. zero. attractive. repulsive. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of magnetic vector potential due to an infinitesimally small current element, evaluated at infinite distance from it? Unity. Depends on strength of current element. Zero. Infinity. Unity. Depends on strength of current element. Zero. Infinity. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A waveguide operated below cut off frequency can be used as None Phase shifter An isolator An attenuator None Phase shifter An isolator An attenuator ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Conductor is static and the field is varying then emf will be induced. This principle is called dynamically induced emf. static induced emf. none of these virtually induced emf. dynamically induced emf. static induced emf. none of these virtually induced emf. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A potential field is given by V = 3x2 y – yz. The electric field at P(2, -1, 4) is 12 Ix - Iz V/m. 12 Ix - 8 Iy V/m. 12 Ix - 8 Iy - Iz V/m. 12 Ix + 8 Iy + Iz V/m. 12 Ix - Iz V/m. 12 Ix - 8 Iy V/m. 12 Ix - 8 Iy - Iz V/m. 12 Ix + 8 Iy + Iz V/m. 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. 2.28 A. 18.08 A. 4.56 A. 9.04 A. 2.28 A. 18.08 A. 4.56 A. 9.04 A. ANSWER DOWNLOAD EXAMIANS APP
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