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 12t. 4t3. 24t. 12t3. 12t. 4t3. 24t. 12t3. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In an impedance smith chart, a clockwise movement along a constant resistance circle gives rise to No change in the reactance value No change in the impedance value Decrease in the value of reactance An increase in the value of reactance No change in the reactance value No change in the impedance value Decrease in the value of reactance An increase in the value of reactance ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If the resistance of a conductor does not vary in accordance with the Ohms law it is known as non - linear conductor. bad conductor. reverse conductor. non - conductor. non - linear conductor. bad conductor. reverse conductor. non - conductor. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of magnetic vector potential due to an infinitesimally small current element, evaluated at infinite distance from it? Zero. Unity. Depends on strength of current element. Infinity. Zero. Unity. Depends on strength of current element. Infinity. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A magnetic vector potential is given by the expression A = (- cos x) (cos y) uz. The flux density at the origin is – uy. – 2 ux. 2 ux. 0. – uy. – 2 ux. 2 ux. 0. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Electric flux in coulombs emanating from any surface of a cube containing C coulombs of charge at its centre is Q / 6ε. 4πQ / 6ε. Q / 6. Q / 4π. Q / 6ε. 4πQ / 6ε. Q / 6. Q / 4π. ANSWER DOWNLOAD EXAMIANS APP
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