Electromagnetic Field Theory The inductance of a long solenoid of length 1000 mm wound uniformly with 3000 turns on a cylindrical paper cable of 60 mm diameter is 3.2 mH. 32 mH. 3.2 H. 3.2 µH. 3.2 mH. 32 mH. 3.2 H. 3.2 µH. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The critical frequency of ‘F’ layer is greater than 30 MHz. True False True False ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A sphere of 20 cm radius contains electrical charge of density 2/(r sinθ) c/m3. What is the total charge contained within the sphere? 0.335/sinθ c. 0.335 C. 0. None of above. 0.335/sinθ c. 0.335 C. 0. None of above. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of magnetic vector potential due to an infinitesimally small current element, evaluated at infinite distance from it? Zero. Unity. Infinity. Depends on strength of current element. Zero. Unity. Infinity. Depends on strength of current element. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of total electric flux coming out of a closed surface? Equal to the surface charge density. Zero. Equal to total charge enclosed by the surface. Equal to volume change density. Equal to the surface charge density. Zero. Equal to total charge enclosed by the surface. Equal to volume change density. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Fleming's right hand rule may be applied to an electric generator to find out the direction of magnetic field. rotor rotation. induced emf. None of these magnetic field. rotor rotation. induced emf. None of these ANSWER DOWNLOAD EXAMIANS APP
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