Electromagnetic Field Theory The operation of electric generators and motors depend on the intraction between magnetic field and Electric fields. Copper conductors. Electric current. Commutator. Electric fields. Copper conductors. Electric current. Commutator. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The ability of charged bodies to exert force on one another is attributed to the existence of electrons. protons. electric field. neutrons. electrons. protons. electric field. neutrons. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which statement does not say that electrostatic field is conservative? The potential difference between two points is zero. If the curl of E is identically zero. If is gradient of a scalar potential. The work done in a closed path inside the fields is zero. The potential difference between two points is zero. If the curl of E is identically zero. If is gradient of a scalar potential. The work done in a closed path inside the fields is zero. 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 45° to the direction of field. 75° to the direction of field. 30° to the direction of field. 60° to the direction of field. 45° to the direction of field. 75° to the direction of field. 30° to the direction of field. 60° to the direction of field. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Voltage applied across a dielectric produces an electrostatic field 50 times greater than air. The dielectric constant of the dielectric will be 5. 20. 50. 10. 5. 20. 50. 10. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A rectangular loop in the x – z plane bounded by the lines x = 0, x = a, z = 0 and z = b is in a time varying magnetic field is given by B = B0 cosωt + ay. Where B0 is constant, ω is angular frequency and ay unit vector in the y direction. Now the emf induced in the loop is given by ab Bo cosω t. Zero. abω Bo sinω t. Bo ω sinω t. ab Bo cosω t. Zero. abω Bo sinω t. Bo ω sinω t. ANSWER DOWNLOAD EXAMIANS APP
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