Electromagnetic Field Theory The magnetic field required to reduce the residual magnetism to zero is called Coercivity. Saturation magnetism. Retentivity. Hysteresis. Coercivity. Saturation magnetism. Retentivity. Hysteresis. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two parallel plates are separated by a distance D charged by V volt. The field intensity E is given by, V × D V × D² V² / D V / D V × D V × D² V² / D V / D ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In order to minimize loss due to hysteresis the magnetic material should have high hysteresis coefficient. large coercivity. high resistivity. small B-H loop area. high hysteresis coefficient. large coercivity. high resistivity. small B-H loop area. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If a and b are the dimensions of waveguide then a = 3b a = b/4 a = 2b a = b a = 3b a = b/4 a = 2b a = b ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Plane z = 10 m carries charge 20 C/m2. The electric field intensity at the origin is – 72 πuz v/m. – 10 uz v/m. – 360 πuz v/m. – 18 πuz v/m. – 72 πuz v/m. – 10 uz v/m. – 360 πuz v/m. – 18 πuz v/m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Parabolic and lens antenna used at Microwave frequency Medium frequency Low frequency High frequency Microwave frequency Medium frequency Low frequency High frequency ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS