Electromagnetic Field Theory Due to which of the following reasons a lightning conductor on top of a building is made into a pointed spike? Rain drops may not collect Dust particles may not accumulate Charge per unit area becomes very high for lightening to discharge None of these Rain drops may not collect Dust particles may not accumulate Charge per unit area becomes very high for lightening to discharge None of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Electric field inside a hollow metallic charged sphere is none of above. zero. decreasing towards centre. increasing towards centre. none of above. zero. decreasing towards centre. increasing towards centre. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An electric field of 1.92 × 103 N/C is maintained across two plates separated by 0.015 m. Potential difference across plates will be 14.40 V. 28.8 V. 1.4 V. 2.88 V. 14.40 V. 28.8 V. 1.4 V. 2.88 V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The force experienced by a current carrying conductor lying parallel to a magnetic field is Bil sinθ. zero. Bil cosθ. BIL. Bil sinθ. zero. Bil cosθ. BIL. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A plane wave in a homogeneous medium has E = 50 sin(108t + 2z) uy V/m. What is the direction of wave propagation y direction. z direction. – z direction. – y direction. y direction. z direction. – z direction. – y direction. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If in a 1 mF capacitor, an instantaneous displacement current of 1 A is to be established in the spaces between its plates then it is possible by applying 106 volts/sec. 106 volts. 106 Amp. 106 Amp/sec. 106 volts/sec. 106 volts. 106 Amp. 106 Amp/sec. ANSWER DOWNLOAD EXAMIANS APP
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