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 RBT. R2B / T. 2RBT. R2BT. RBT. R2B / T. 2RBT. R2BT. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The electric field on a plane is decribed by . The field due to a dipole. none of above. a monopole. a dipole and a monopole. a dipole. none of above. a monopole. a dipole and a monopole. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If n is the polarization vector and k is the direction of propagation plane electromagnetic wave, then n = K. n × k = 0. n = - k. n. k = 0. n = K. n × k = 0. n = - k. n. k = 0. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The energy stored in the magnetic field at a solenoid 30 cm long and 3 cm diameter wound with 1000 turns of wire carrying an current at 10 A, is 0.15 J. 1.15 J. 0.015 J. 0.5 J. 0.15 J. 1.15 J. 0.015 J. 0.5 J. 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 30° to the direction of field. 75° to the direction of field. 60° to the direction of field. 45° to the direction of field. 30° to the direction of field. 75° to the direction of field. 60° to the direction of field. 45° to the direction of field. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The emf induced in a conductor rotating in bipolar field is DC. none of these. DC and AC both. AC. DC. none of these. DC and AC both. AC. ANSWER DOWNLOAD EXAMIANS APP
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