question_answer2) If in a circular coil A of radius R, current j is flowing and in another coil B of radius 2 R, a current 2 i is flowing, then the ratio of the magnetic fields, \[{{B}_{A}}\] and \[{{B}_{B}}\] produced by them will be
AIEEE Solved Paper-2002
question_answer3) In a transformer, number of turns in the primary are 140 and that in the secondary are 280. If current in primary is 4 A, then that in the secondary is
AIEEE Solved Paper-2002
question_answer4) Wires 1 and 2 carrying currents, \[{{i}_{1}}\] and \[{{i}_{2}}\] respectively are inclined at an angle \[\theta \] to each other. What is the force on a small element dl of wire 2 at a distance r from wire 1 (as shown in figure) due to the magnetic field of wire 1?
AIEEE Solved Paper-2002
question_answer5) A conducting square loop of side L and resistance R moves in its plane with a uniform velocity v perpendicular to one of its sides. A magnetic induction B constant in time and space, pointing perpendicular and into the plane at the loop exist everywhere with half the loop outside the field, as shown in figure. The induced emf is
AIEEE Solved Paper-2002