Electromagnetic Field Theory An insulated metal sphere of 20 cm diameter is charged by rubbing with charges 2 × 10-8 C. Potential developed will be 200 V. 0 V. 1800 V. 900 V. 200 V. 0 V. 1800 V. 900 V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A point pole has a strength of 4π × 10-4 weber. The force in newtons on a point pole of 4π × 1.5 × 10-4 weber placed at a distance of 10 cm from it will be 15 N. 3.75 N. 20 N. 7.5 N. 15 N. 3.75 N. 20 N. 7.5 N. 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 None of these magnetic field. rotor rotation. induced emf. None of these magnetic field. rotor rotation. induced emf. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If a and b are the dimensions of waveguide then a = 3b a = b a = b/4 a = 2b a = 3b a = b a = b/4 a = 2b ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The radiation pattern of a parabola antenna is None of these A figure of directional Omnidirectional Highly directional None of these A figure of directional Omnidirectional Highly directional ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A plane wave magnetic field is represented by Bx = cos(y – ct). The electric and magnetic fields will be zero in the direction Ex = Ey = 0, By = Bz = 0. None of these. Ey = Ez = 0, By = Bz = 0. Ex = Ey = 0, Bx = By = 0. Ex = Ey = 0, By = Bz = 0. None of these. Ey = Ez = 0, By = Bz = 0. Ex = Ey = 0, Bx = By = 0. ANSWER DOWNLOAD EXAMIANS APP
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