Electromagnetic Field Theory A metal sphere with 1 m radius and a surface charge density of 10 coulombs/m2 is enclosed in a cube of 10 m side. The total outward electric displacement normal to the surface of the cube is 5 C. 40π C. 10 C. None of above. 5 C. 40π C. 10 C. None of above. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnitude of force acting on a current carrying conductor placed in a magnetic field is independent of length of conductor. current flowing through the conductor. flux density. cross-sectional area of conductor. length of conductor. current flowing through the conductor. flux density. cross-sectional area of conductor. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following is multiband HF receiving antenna? Log-periodic Square loop Folded dipole Conical horn Log-periodic Square loop Folded dipole Conical horn ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A loop is rotating about x-axis in a magnetic field, B = BO cos(ω + φ) ay. The voltage in the loop is Zero. Due to transformer only. Due to rotating only. Due to both rotating and transformer action. Zero. Due to transformer only. Due to rotating only. Due to both rotating and transformer action. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following will increase the antenna radiation efficiency? Providing insulation on conductor Top loading of antenna Use of larger section of conductor Any of the above Providing insulation on conductor Top loading of antenna Use of larger section of conductor Any of the above ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The field at any point on the axis of a current carrying coil will be at angle of 45° with the axis. perpendicular to the axis. zero. parallel to axis. at angle of 45° with the axis. perpendicular to the axis. zero. parallel to axis. ANSWER DOWNLOAD EXAMIANS APP
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