Electromagnetic Field Theory According to Coulomb’s law, the force of attraction or repulsion, between to electrical charges is directly proportional to the square of the distance between them. inversely proportional to the square of the distance between them. inversely proportional to the distance between them. directly proportional to the distance between them. directly proportional to the square of the distance between them. inversely proportional to the square of the distance between them. inversely proportional to the distance between them. directly proportional to the distance between them. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In above problem the induced emf will be reduced to half if the conductor moves an angle of 75° to the direction of field. 45° to the direction of field. 30° to the direction of field. 60° to the direction of field. 75° to the direction of field. 45° to the direction of field. 30° to the direction of field. 60° to the direction of field. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which statement does not say that electrostatic field is conservative? If the curl of E is identically zero. The work done in a closed path inside the fields is zero. The potential difference between two points is zero. If is gradient of a scalar potential. If the curl of E is identically zero. The work done in a closed path inside the fields is zero. The potential difference between two points is zero. If is gradient of a scalar potential. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The wave in wave guide has Larger wavelength than in the free space Group velocity inversely proportional to wavelength Diminishing wavelength than in the free space Larger frequency than in the free space Larger wavelength than in the free space Group velocity inversely proportional to wavelength Diminishing wavelength than in the free space Larger frequency than in the free space ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Due to which of the following reasons a lightning conductor on top of a building is made into a pointed spike? Dust particles may not accumulate Rain drops may not collect Charge per unit area becomes very high for lightening to discharge None of these Dust particles may not accumulate Rain drops may not collect Charge per unit area becomes very high for lightening to discharge None of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A point charge in space is attracted towards a dielectric material because of the maximisation of electrostatic flux. dielectric hysteresis. all of above. phenomenon of dielectric polarisation. maximisation of electrostatic flux. dielectric hysteresis. all of above. phenomenon of dielectric polarisation. ANSWER DOWNLOAD EXAMIANS APP
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