Electromagnetic Field Theory A coil of 300 turns is wound on a non-magnetic core having a mean circumference of 300 mm and a cross sectional area of 300 mm2. The current of 3 A will be 37.68 µH. 37.68 mH. 113.04 µH. 113.04 mH. 37.68 µH. 37.68 mH. 113.04 µH. 113.04 mH. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The main purpose of choke is none of above. to pass low frequencies. to pass high frequencies. to block low frequencies. none of above. to pass low frequencies. to pass high frequencies. to block low frequencies. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Inside a hollow conducting sphere electric field is zero. electric field changes with magnitude of the charge given to the conductor. electric field changes with distance from the center of the sphere. electric field is a non zero constant. electric field is zero. electric field changes with magnitude of the charge given to the conductor. electric field changes with distance from the center of the sphere. electric field is a non zero constant. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The useful magnetic flux obtainable from any closed surface is Both A and B Unity Constant None of these Both A and B Unity Constant None of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If a and b are the dimensions of waveguide then a = b a = 3b a = b/4 a = 2b a = b a = 3b a = b/4 a = 2b ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In case of all flux from the current in coil 1 links with coil 2, the coefficient of coupling will be 2.0. 0.5. 1.0. Zero. 2.0. 0.5. 1.0. Zero. ANSWER DOWNLOAD EXAMIANS APP
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