Electromagnetic Field Theory Magnetic flux density emerging out of a closed surface is depends on magnetic movements inside the closed surface. zero. depends on magnetic movements outside the closed surface infinite. depends on magnetic movements inside the closed surface. zero. depends on magnetic movements outside the closed surface infinite. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The core of coil length is 200 mm. The inductance of coil is 6 mH. If the core length is doubled, all other quantities, remaining the same, the inductance will be 3 mH. 24 mH. 12 mH. 48 mH. 3 mH. 24 mH. 12 mH. 48 mH. 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 - 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. 12 Ix + 8 Iy + Iz V/m. 12 Ix - 8 Iy - Iz V/m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The effective reactance of an inductive coil decreases because of stray capacitance as the frequency increases. remains same irrespective of the frequency. increases because of stray capacitance as the frequency increases. none of these. decreases because of stray capacitance as the frequency increases. remains same irrespective of the frequency. increases because of stray capacitance as the frequency increases. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The force required to seperate two surfaces with a contact area measuring 5 cm by 6 cm, when flux density normal to the surface is 0.8 tesla, will be 76400 N. 764 N. 76.4 N. 7640 N. 76400 N. 764 N. 76.4 N. 7640 N. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two coupled coils with L1 = L2 = 0.6 H have a coupling coefficient of K = 0.8. The turns ratio N1/N2 is 4. 2. 0.5. 1. 4. 2. 0.5. 1. ANSWER DOWNLOAD EXAMIANS APP
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