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Consider the situation of the pervious p...

Consider the situation of the pervious problem. (a) Calculate the force needed to keep the sliding wire moving with a constant velocity v. (b) If the force needed just after `t = 0` is `F_0`, find the time at which the force needed will be `F_0 /2`

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RESONANCE-ELECTROMAGNETIC INDUCTION-Exercis-1
  1. Figure shows a wire of resistance R sliding on two parallel, conductin...

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  2. A long U-shaped wire of width l placed in a perpendicular uniform and ...

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  3. Consider the situation of the pervious problem. (a) Calculate the forc...

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  4. A wire of mass m and length l can slide freely on a pair of fixed, smo...

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  5. Figure showns a fixed square frame of wire having a total resistance r...

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  6. The magnetic field in a region is given by vecB=B(0)/Lxhatk where L is...

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  7. A straight wire with a resistance of r per unit length is bent to form...

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  8. A metal rod of length 15xx10^(-2)m rotates about an axis passing throu...

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  9. In the figure there are two identical conducting rods each of length a...

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  10. A bicycle is resting on its stand in the east-west direction and the r...

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  11. A simple pendulum with a bob of mass m and a conducting wire of length...

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  12. A conducting disc of radius R is rolling without sliding on a horizont...

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  13. A closed coil having 50 turns is rotated in a uniform magnetic field B...

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  14. A circular loop of radius 1m is placed in a varying magnetic field giv...

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  15. The current in an ideal, long solenoid is varies at a uniform rate of...

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  16. A magnetic field induction is changing in magnitude at a constant rate...

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  17. The figure shows an inductor of 2H through which a current increasing ...

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  18. Figure shows a part of a circuit.Find the rate of change as shown.

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  19. In the circuit shown find (a)the power drawn from the cell, (b)the pow...

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  20. A long wire carries a current of 4.00 A. Find the energy stored in the...

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