Electromagnetic Field Theory Parabolic and lens antenna used at High frequency Microwave frequency Medium frequency Low frequency High frequency Microwave frequency Medium frequency Low frequency 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 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. Ex = Ey = 0, By = Bz = 0. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The skip distance is the maximum distance upto which ionospheric reflection is possible. True False True False ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A magnetic field B = 5 × 10-2 uz T exerts a force on 0.02 m conductor along the x-axis. The conductor carried a current of 5 mA in the – ux direction. What force must be applied to the conductor to hold it in position 5 × 10-5 uy N. 5 × 10-5 uz N. - 5 × 10-5 uy N. 5 × 10-5 ux N. 5 × 10-5 uy N. 5 × 10-5 uz N. - 5 × 10-5 uy N. 5 × 10-5 ux N. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Electric field inside a hollow metallic charged sphere is zero. increasing towards centre. decreasing towards centre. none of above. zero. increasing towards centre. decreasing towards centre. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The emf induced in a conductor rotating in bipolar field is none of these. AC. DC. DC and AC both. none of these. AC. DC. DC and AC both. ANSWER DOWNLOAD EXAMIANS APP