Electromagnetic Field Theory A vector field A = p In is given in Cartesian coordinates. In cylindrical coordinates it will be represented as A = cosφ Ir - sinφ Ir. A = sinφ Ir. A = cosφ Ir + sinφ Iφ. A = cosφ Ir. A = cosφ Ir - sinφ Ir. A = sinφ Ir. A = cosφ Ir + sinφ Iφ. A = cosφ Ir. ANSWER DOWNLOAD EXAMIANS APP
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 2RBT. R2BT. RBT. R2B / T. 2RBT. R2BT. RBT. R2B / T. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A point pole has a strength of 4π × 10-4 weber. The force in newtons on a point pole of 4π × 1.5 × 10-4 weber placed at a distance of 10 cm from it will be 3.75 N. 20 N. 7.5 N. 15 N. 3.75 N. 20 N. 7.5 N. 15 N. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Find the length of a conductor which is moving with a velocity 0.4m/s in a magnetic field of 8T, inducing an emf of 20V. 0.5m. 5.25m. 0.6m. 6.25m. 0.5m. 5.25m. 0.6m. 6.25m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The energy stored in the magnetic field in a solenoid 10 cm long and 4 cm diameter wound with 2000 turns of wire carrying a current at 20 amp, is 15 joules. 30 joules. 12 joules. 24 joules. 15 joules. 30 joules. 12 joules. 24 joules. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A long wire composed of a smooth round conductor runs above and parallel to the ground (assumed to be a large conducting plane). A high voltage exists between the conductor and the ground. The maximum electric stress occurs at the ground surface. lower surface of the conductor. upper surface of the conductor. midway between the conductor and ground. the ground surface. lower surface of the conductor. upper surface of the conductor. midway between the conductor and ground. ANSWER DOWNLOAD EXAMIANS APP
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