Electromagnetic Field Theory A metal surface with 1 meter radius and surface charge density of 20 coulombs / m2 is enclosed in a 10 m side cube. The total outward electric displacement normal to the surface of the cube is none of these. 40π coulombs. 80π coulombs. 10π coulombs. none of these. 40π coulombs. 80π coulombs. 10π coulombs. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The shape of B-H curve for air gap is ellipse. hyperbola. straight line. parabola. ellipse. hyperbola. straight line. parabola. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Find the length of a conductor which is moving with a velocity 0.4m/s in a magnetic field of 8T, inducing an emf of 20V. 6.25m. 0.5m. 5.25m. 0.6m. 6.25m. 0.5m. 5.25m. 0.6m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic circuit with cross sectional area of 20 cm2 is to be operated at 50 Hz from 120 Vrms supply. The number of turns required to active a peak magnetic flux density of 1.8 T in the core flux is 450. 600. 300. 150. 450. 600. 300. 150. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Conductor is varying and field is fixed then emf will be induced. This principle is called static induced emf. both A and B. None of these dynamically induced emf. static induced emf. both A and B. None of these dynamically induced emf. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following circuit element stores energy in electro-magnetic field? Capacitor. Variable Resistor. Condenser. Inductor. Capacitor. Variable Resistor. Condenser. Inductor. ANSWER DOWNLOAD EXAMIANS APP
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