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 12t3. 12t. 4t3. 24t. 12t3. 12t. 4t3. 24t. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following is the unit of inductance? Milli- henry. Webers / m. Ampere turns. Ohm. Milli- henry. Webers / m. Ampere turns. Ohm. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A loop is rotating about x-axis in a magnetic field, B = BO cos(ω + φ) ay. The voltage in the loop is Zero. Due to rotating only. Due to transformer only. Due to both rotating and transformer action. Zero. Due to rotating only. Due to transformer only. Due to both rotating and transformer action. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory For an inductor, current is proportional to both (A) and (B). magnetic field. voltage across the inductor. none of them. both (A) and (B). magnetic field. voltage across the inductor. none of them. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The virtual height of an ionospheric layer is __________ true height Less than Equal to Higher than No relation Less than Equal to Higher than No relation ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An inductor designed with 400 turns coil wound on an iron core of 16 cm2 cross sectional area and with a cut of air gap length of 1 mm. The coil is connected to a 230 V, 50 Hz supply. Neglected coil resistance, core loss, iron reluctance and leakage inductance. Find the current in the inductor. 4.56 A. 18.08 A. 2.28 A. 9.04 A. 4.56 A. 18.08 A. 2.28 A. 9.04 A. ANSWER DOWNLOAD EXAMIANS APP
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