Electromagnetic Field Theory A magnetic material has a total flux B of 80 micro Wb with an mmf of 160 AT. The reluctance in ampere turn per weber is 2 × 10-6. 2 × 106. 2 × 108. 2 × 10-8. 2 × 10-6. 2 × 106. 2 × 108. 2 × 10-8. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic circuit with cross sectional area of 20 cm2 is to be operated at 50 Hz from 120 Vrms supply. The number of turns required to active a peak magnetic flux density of 1.8 T in the core flux is 450. 600. 300. 150. 450. 600. 300. 150. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following is the unit of inductance? Webers / m. Ohm. Ampere turns. Milli- henry. Webers / m. Ohm. Ampere turns. Milli- henry. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The main purpose of choke is to pass high frequencies. to block low frequencies. none of above. to pass low frequencies. to pass high frequencies. to block low frequencies. none of above. to pass low frequencies. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The force required to seperate two surfaces with a contact area measuring 5 cm by 6 cm, when flux density normal to the surface is 0.8 tesla, will be 76400 N. 764 N. 76.4 N. 7640 N. 76400 N. 764 N. 76.4 N. 7640 N. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A pure inductor is connected across a voltage source. Find the active power drawn by the inductor? maximum either 1 or 2 0 None of these maximum either 1 or 2 0 None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS