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 200 V. 0 V. 1800 V. 900 V. 200 V. 0 V. 1800 V. 900 V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two coils are coupled in such a way that the mutual inductance between them is 20 mH. If the inductances of the coils are 40 mH and 50 mH respectively, the coefficient of coupling is 0.477. 0.447. 0.577. 0.01. 0.477. 0.447. 0.577. 0.01. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A conductor of length L has current I passing through it, when it is placed parallel to strong magnetic field. The force experienced by the conductor will be zero. BI2L. BL2I. BIL. zero. BI2L. BL2I. BIL. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An electric dipole of moment P is placed in front of a ground sphere. The change induced on the surface of the sphere is (Assume radius of sphere = R and distance from dipole to centre of sphere = d) Zero. PR/d. PR 2/d3. PR/d2. Zero. PR/d. PR 2/d3. PR/d2. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The wave in wave guide has Diminishing wavelength than in the free space Larger wavelength than in the free space Larger frequency than in the free space Group velocity inversely proportional to wavelength Diminishing wavelength than in the free space Larger wavelength than in the free space Larger frequency than in the free space Group velocity inversely proportional to wavelength ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The static electric field in a conductor is Zero Infinity None of these Unity Zero Infinity None of these Unity ANSWER DOWNLOAD EXAMIANS APP
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