Electromagnetic Field Theory The magnetic field at any point on the axis of current carrying circular coil will be parallel to axis. perpendicular to axis. at an angle 45o with the axis. zero. parallel to axis. perpendicular to axis. at an angle 45o with the axis. zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Materials subjected to rapid reversals of magnetism should have low permeability. low hysteresis loss. high permeability. both a and b. low permeability. low hysteresis loss. high permeability. both a and b. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following is true for a purely inductive circuit ? Actual power of the circuit is zero. Any capacitance even if present in the circuit will not be charged. Apparent power of the circuit is zero. Reactive power of the circuit is zero. Actual power of the circuit is zero. Any capacitance even if present in the circuit will not be charged. Apparent power of the circuit is zero. Reactive power of the circuit is zero. 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. 4.56 A. 9.04 A. 18.08 A. 2.28 A. 4.56 A. 9.04 A. 18.08 A. 2.28 A. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The divergence of a vector is a scalar, while the curl of a vector is another None of these Unit vector Scalar Vector None of these Unit vector Scalar Vector ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The core of coil length is 200 mm. The inductance of coil is 6 mH. If the core length is doubled, all other quantities, remaining the same, the inductance will be 48 mH. 3 mH. 24 mH. 12 mH. 48 mH. 3 mH. 24 mH. 12 mH. ANSWER DOWNLOAD EXAMIANS APP
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