Electromagnetic Field Theory The field at any point on the axis of a current carrying coil will be parallel to axis. zero. at angle of 45° with the axis. perpendicular to the axis. parallel to axis. zero. at angle of 45° with the axis. perpendicular to the axis. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two point charges (Q and – Q) are situated at the vertex of the square. If potential at another vertex is 2 V, so potential at opposite vertex (diagonally) is Zero. √ 2 V. 2 V. 1 V. Zero. √ 2 V. 2 V. 1 V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In an iron core coil the iron core is removed so that the coil becomes an air core coil. The inductance of the coil will increase. decrease. remain the same. initially increase and then decrease. increase. decrease. remain the same. initially increase and then decrease. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The shape of B-H curve for air gap is straight line. parabola. ellipse. hyperbola. straight line. parabola. ellipse. hyperbola. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Biot-Savarts law states the relation between magnetic intensity and (A), (B), and (D) are all correct. surface current only. volume current only. filament current only. (A), (B), and (D) are all correct. surface current only. volume current only. filament current only. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An insulated metal sphere of 20 cm diameter is charged by rubbing with charges 2 × 10-8 C. Potential developed will be 0 V. 1800 V. 200 V. 900 V. 0 V. 1800 V. 200 V. 900 V. ANSWER DOWNLOAD EXAMIANS APP
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