Electromagnetic Field Theory Biot-Savarts law states the relation between magnetic intensity and filament current only. volume current only. (A), (B), and (D) are all correct. surface current only. filament current only. volume current only. (A), (B), and (D) are all correct. surface current only. ANSWER DOWNLOAD EXAMIANS APP
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 80π coulombs. none of these. 10π coulombs. 40π coulombs. 80π coulombs. none of these. 10π coulombs. 40π coulombs. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Electric flux in coulombs emanating from any surface of a cube containing C coulombs of charge at its centre is Q / 4π. Q / 6ε. 4πQ / 6ε. Q / 6. Q / 4π. Q / 6ε. 4πQ / 6ε. Q / 6. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two coils have inductances L1 = 1200 mH and L2 = 800 mH. They are connected in such a way that flux in the two coils aid each other and inductance is measured to be 2500 mH, then Mutual inductance between the coils is ___________ mH. 150. 250. 225. 145. 150. 250. 225. 145. 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 uz N. 5 × 10-5 uy N. - 5 × 10-5 uy N. 5 × 10-5 ux N. 5 × 10-5 uz N. 5 × 10-5 uy N. - 5 × 10-5 uy N. 5 × 10-5 ux N. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnetic field at any point on the axis of current carrying circular coil will be zero. at an angle 45o with the axis. parallel to axis. perpendicular to axis. zero. at an angle 45o with the axis. parallel to axis. perpendicular to axis. ANSWER DOWNLOAD EXAMIANS APP
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