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 764 N. 7640 N. 76400 N. 76.4 N. 764 N. 7640 N. 76400 N. 76.4 N. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The attenuation in waveguide above to cut off frequency Very low Very high Infinite Zero Very low Very high Infinite Zero ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory When a wave is incident from the more dense into a less dense medium at an angle equal to or exceeding the critical angle, the wave suffers total internal __________ . None of these Reflection Transmission Refraction None of these Reflection Transmission Refraction ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following will increase the antenna radiation efficiency? Top loading of antenna Use of larger section of conductor Providing insulation on conductor Any of the above Top loading of antenna Use of larger section of conductor Providing insulation on conductor Any of the above ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic field intensity at centre of circular coil, of diameter 1 m and carrying a current of 2 A is 2 A/m. 8 A/m. 4 A/m. 1 A/m. 2 A/m. 8 A/m. 4 A/m. 1 A/m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A fan blade of length 2R rotates in a time period T in a magnetic field B. The induced voltage in the blade is proportional to R2B / T. R2BT. RBT. 2RBT. R2B / T. R2BT. RBT. 2RBT. ANSWER DOWNLOAD EXAMIANS APP
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