Electromagnetic Field Theory A voltage waveform V(t) = 12t2 is applied across a 1H inductor for t = 0, with initial current through it being zero. The current through the inductor for t = 0 is given by 4t3. 24t. 12t. 12t3. 4t3. 24t. 12t. 12t3. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following is true for a purely inductive circuit ? Actual 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. Reactive power of the circuit is zero. Actual 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. Reactive power of the circuit is zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Conductor is static and the field is varying then emf will be induced. This principle is called none of these dynamically induced emf. static induced emf. virtually induced emf. none of these dynamically induced emf. static induced emf. virtually induced emf. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two coils are coupled in such a way that the mutual inductance between them is 20 mH. If the inductances of the coils are 40 mH and 50 mH respectively, the coefficient of coupling is 0.01. 0.577. 0.447. 0.477. 0.01. 0.577. 0.447. 0.477. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The developed electromagnetic force and or torque in electromechanical energy conversion system act in a direction that tends to increase the stored energy at constant flux. to decrease the co-energy at constant mmf. to decrease the stored energy at constant mmf. to decrease the stored energy at constant flux. to increase the stored energy at constant flux. to decrease the co-energy at constant mmf. to decrease the stored energy at constant mmf. to decrease the stored energy at constant flux. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The radiation pattern of a parabola antenna is A figure of directional Omnidirectional Highly directional None of these A figure of directional Omnidirectional Highly directional None of these ANSWER DOWNLOAD EXAMIANS APP
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