Electromagnetic Field Theory The force on a charge moving with velocity v under the influence of electric and magnetic fields is given by which one of the following q(E +V × H). q(E + B × V). q(E + V × B). q(H + V × E). q(E +V × H). q(E + B × V). q(E + V × B). q(H + V × E). ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Midway between two equal and similar charges, a third equal and similar charge is placed, then this third charge will remain in stable equilibrium. be in unstable equilibrium. not be equilibrium. will move out of the field of influence of two charges. remain in stable equilibrium. be in unstable equilibrium. not be equilibrium. will move out of the field of influence of two charges. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A pure inductor is connected across a voltage source. Find the active power drawn by the inductor? either 1 or 2 None of these maximum 0 either 1 or 2 None of these maximum 0 ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Ohm’s law in point from field theory can be expressed as J = E / σ. J = σE. R = ρ × ( l / A). V = IR. J = E / σ. J = σE. R = ρ × ( l / A). V = IR. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following is true for a purely inductive circuit ? Actual power of the circuit is zero. Reactive power of the circuit is zero. Apparent power of the circuit is zero. Any capacitance even if present in the circuit will not be charged. Actual power of the circuit is zero. Reactive power of the circuit is zero. Apparent power of the circuit is zero. Any capacitance even if present in the circuit will not be charged. 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. abω Bo sinω t. Zero. Bo ω sinω t. ab Bo cosω t. abω Bo sinω t. Zero. Bo ω sinω t. ANSWER DOWNLOAD EXAMIANS APP
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