Electromagnetic Field Theory The frequency range for satellite communication is 3000 to 30000 MHz 30000 to 300000 MHz 300 to 3000 kHz 3 to 30 kHz 3000 to 30000 MHz 30000 to 300000 MHz 300 to 3000 kHz 3 to 30 kHz ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The energy stored in the magnetic field in a solenoid 10 cm long and 4 cm diameter wound with 2000 turns of wire carrying a current at 20 amp, is 12 joules. 24 joules. 30 joules. 15 joules. 12 joules. 24 joules. 30 joules. 15 joules. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Ohm’s law in point from field theory can be expressed as R = ρ × ( l / A). V = IR. J = E / σ. J = σE. R = ρ × ( l / A). V = IR. J = E / σ. J = σE. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Parabolic and lens antenna used at Medium frequency Microwave frequency High frequency Low frequency Medium frequency Microwave frequency High frequency Low frequency ANSWER DOWNLOAD EXAMIANS APP
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 113.04 mH. 37.68 mH. 113.04 µH. 37.68 µH. 113.04 mH. 37.68 mH. 113.04 µH. 37.68 µH. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two infinite parallel metal plates are charged with equal surface charge density of the same polarity. The electric field in the gap between the plates is double the field produced by one plate. dependent on coordinates of field points. zero. same as that produced by one plate. double the field produced by one plate. dependent on coordinates of field points. zero. same as that produced by one plate. ANSWER DOWNLOAD EXAMIANS APP
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