Electromagnetic Field Theory Gradient of scalar field is expressed as Outward flux of a vector field per unit volume as the volume about the point tends to zero. Maximum rate of increase of scalar function at a point. Gradient of divergence of a vector field minus the curl of the vector field. Circulation of a vector field per unit area as the area tends to zero. Outward flux of a vector field per unit volume as the volume about the point tends to zero. Maximum rate of increase of scalar function at a point. Gradient of divergence of a vector field minus the curl of the vector field. Circulation of a vector field per unit area as the area tends to zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two coils have inductances L1 = 1200 mH and L2 = 800 mH. They are connected in such a way that flux in the two coils aid each other and inductance is measured to be 2500 mH, then Mutual inductance between the coils is ___________ mH. 225. 150. 145. 250. 225. 150. 145. 250. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A solid sphere made of insulating material has a radius R and has a total charge Q distributed uniformly in its volume. What is the magnitude of electric field intensity, E, at a distance r (o less than r less than R) inside the sphere Qr/(4 π εo R3). QR/(4π εo r3). Q/(4 π εo r3). 3 Qr/(4 π εo R3). Qr/(4 π εo R3). QR/(4π εo r3). Q/(4 π εo r3). 3 Qr/(4 π εo R3). ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A magnetic material has a total flux B of 80 micro Wb with an mmf of 160 AT. The reluctance in ampere turn per weber is 2 × 10-8. 2 × 106. 2 × 108. 2 × 10-6. 2 × 10-8. 2 × 106. 2 × 108. 2 × 10-6. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory For a line characteristic impedance zo terminated is load zo/3, the reflection coefficient is 2/3. – ½. – 1/3. 1/3. 2/3. – ½. – 1/3. 1/3. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Whenever the magnetic flux changes with respect to an electric conductor or a coil, an EMF is induced in the conductor is Faraday’s third law second law fourth law first law third law second law fourth law first law ANSWER DOWNLOAD EXAMIANS APP
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