30. Induction and Inductance
Faraday's Law
30. Induction and Inductance
Faraday's Law
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- Multiple Choice
A tightly-wound 200-turn rectangular loop has dimensions of 40cm by 70cm. A constant magnetic field of 3.5T points in the same direction as the normal of the loop. If the dimensions of the loop change to 20cm by 35cm over 0.5s, with the number of turns remaining the same, what is the induced EMF on the rectangular loop?
937views21rank5comments - Multiple Choice
A square conducting wire of side length 4 cm is in a 2 T magnetic field. It rotates such that the angle of the magnetic field to the normal of the square increases from 30° to 60° in 2 s. What is the induced current on the wire if its resistance is 5 mΩ?
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The figure shows a wire loop being moved toward a current-carrying wire. If the loop continues to move past the wire, so that the loop is lower than the wire in the picture, and still moving, what will be the direction of the induced current in the loop?833views1rank - Multiple ChoiceIn a region of space, a magnetic field is increasing at. A square loop of wire with a side of is oriented perpendicular to the field. The loop has a total resistance of. What current is induced in the loop?815views