Electromagnetic Field Theory In an iron core coil the iron core is removed so that the coil becomes an air core coil. The inductance of the coil will remain the same. increase. decrease. initially increase and then decrease. remain the same. increase. decrease. initially increase and then decrease. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Whenever the magnetic flux changes with respect to an electric conductor or a coil, an EMF is induced in the conductor is Faraday’s third law fourth law second law first law third law fourth law second law first law 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 4πQ / 6ε. Q / 6. Q / 4π. Q / 6ε. 4πQ / 6ε. Q / 6. Q / 4π. Q / 6ε. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Cork Screw rule is used to find direction of electric field. direction of emf. direction of magnetic field. direction of current. direction of electric field. direction of emf. direction of magnetic field. direction of current. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A fan blade of length 2R rotates in a time period T in a magnetic field B. The induced voltage in the blade is proportional to RBT. R2BT. R2B / T. 2RBT. RBT. R2BT. R2B / T. 2RBT. 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 + Iz V/m. 12 Ix - 8 Iy V/m. 12 Ix - 8 Iy - Iz V/m. 12 Ix - Iz V/m. 12 Ix + 8 Iy + Iz V/m. 12 Ix - 8 Iy V/m. 12 Ix - 8 Iy - Iz V/m. ANSWER DOWNLOAD EXAMIANS APP
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