Electromagnetic Field Theory A circular loop has its radius increasing at a rate of 2 m/s. The loop placed perpendicular to a constant magnetic field of 0.5 wb/m2. When the radius of the loop is 4 m. the emf induced in the will be 0.4 π V. 8 π V. Zero. 0.8 π V. 0.4 π V. 8 π V. Zero. 0.8 π V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory ________ at a point is defined as the force experienced per unit positive charge at a point placed in the electric field. Electric flux. Electric intensity. Magnetic flux density. None of these Electric flux. Electric intensity. Magnetic flux density. None of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A potential field is given by V = 3x2 y – yz. The electric field at P(2, -1, 4) is 12 Ix + 8 Iy + Iz V/m. 12 Ix - 8 Iy - Iz V/m. 12 Ix - Iz V/m. 12 Ix - 8 Iy V/m. 12 Ix + 8 Iy + Iz V/m. 12 Ix - 8 Iy - Iz V/m. 12 Ix - Iz V/m. 12 Ix - 8 Iy V/m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of magnetic vector potential due to an infinitesimally small current element, evaluated at infinite distance from it? Infinity. Unity. Zero. Depends on strength of current element. Infinity. Unity. Zero. Depends on strength of current element. 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. Ex = Ey = 0, Bx = By = 0. Ey = Ez = 0, By = Bz = 0. None of these. Ex = Ey = 0, By = Bz = 0. Ex = Ey = 0, Bx = By = 0. Ey = Ez = 0, By = Bz = 0. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two spheres of radius r1 and r2 are connected by a conducting wire. Each of the spheres has been given a charge Q. Now larger sphere will have greater potential. smaller sphere will have zero potential. both of sphere will have same potential. larger sphere will have smalled potential. larger sphere will have greater potential. smaller sphere will have zero potential. both of sphere will have same potential. larger sphere will have smalled potential. ANSWER DOWNLOAD EXAMIANS APP
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