Electromagnetic Field Theory A fan blade of length 2R rotates in a time period T in a magnetic field B. The induced voltage in the blade is proportional to R2B / T. 2RBT. RBT. R2BT. R2B / T. 2RBT. RBT. R2BT. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two straight parallel conductors carry equal currents in opposite direction. The force between them is zero. attractive. repulsive. none of above. zero. attractive. repulsive. none of above. ANSWER DOWNLOAD EXAMIANS APP
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 Self inductance of magnetic coil is proportional to 1 / N. N2. N. 1 / N2. 1 / N. N2. N. 1 / N2. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of skin depth as 100 Hz in a material having μr = 1.0 and & σ = 3.60 × 107 s/m 4 mm. 2.4 mm. 10 mm. 8.4 mm. 4 mm. 2.4 mm. 10 mm. 8.4 mm. 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? 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 Dust particles may not accumulate Rain drops may not collect Charge per unit area becomes very high for lightening to discharge ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS