Electromagnetic Field Theory Cork Screw rule is used to find direction of emf. direction of magnetic field. direction of electric field. direction of current. direction of emf. direction of magnetic field. direction of electric field. direction of current. 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 long straight wire carries a current I = 10A. At what distance is the magnetic field H = 1A/m? 1.39 m. 1.29 m. 1.19 m. 1.59 m. 1.39 m. 1.29 m. 1.19 m. 1.59 m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The property of the coil by which a counter emf is induced in it when the current through the coil changes is known as mutual inductance. series aiding inductance. self inductance. capacitance. mutual inductance. series aiding inductance. self inductance. capacitance. ANSWER DOWNLOAD EXAMIANS APP
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. 3.2 H. 3.2 µH. 32 mH. 3.2 mH. 3.2 H. 3.2 µH. 32 mH. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The electrical field strength at a distance point A due to a point charge +q, located at the origin, is 100 µl v/m. If the point charge is now enclosed by a perfectly conducting metal sheet sphere whose centre is at origin, A, outside the sphere, becomes - 100 μ v/m. 100 μ v/m. 0. None of above. - 100 μ v/m. 100 μ v/m. 0. None of above. ANSWER DOWNLOAD EXAMIANS APP
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