Electromagnetic Field Theory According to Coulomb’s law, the force of attraction or repulsion, between to electrical charges is directly proportional to the distance between them. directly proportional to the square of the distance between them. inversely proportional to the square of the distance between them. inversely proportional to the distance between them. directly proportional to the distance between them. directly proportional to the square of the distance between them. inversely proportional to the square of the distance between them. inversely proportional to the distance between them. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A copper disc is rotated rapidly below a freely suspended magnetic needle. The magnetic needle starts rotating with velocity less than that of disc but in opposite direction. equal to that of disc and in the same direction. less than that of disc and in the same direction. equal to that of disc and in the opposite direction. less than that of disc but in opposite direction. equal to that of disc and in the same direction. less than that of disc and in the same direction. equal to that of disc and in the opposite direction. 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. None of these Electric flux. Electric intensity. Magnetic flux density. None of these Electric flux. Electric intensity. Magnetic flux density. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The heating time constant of an electrical machine gives an indication of its overload capacity. rating. short time rating. cooling. overload capacity. rating. short time rating. cooling. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The tubes of force within the magnetic material are known as tubes of indication. magnetic flux. none of them. lines of force. tubes of indication. magnetic flux. none of them. lines of force. 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. 12 mH. 24 mH. 48 mH. 3 mH. 12 mH. 24 mH. 48 mH. ANSWER DOWNLOAD EXAMIANS APP
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