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Two straight conducting rails form a rig...

Two straight conducting rails form a right angle where their ends are joined. A conducting bar in contact with the rails starts at the vertex at time t = 0 and moves with constant velocity v along them as shown in Fig. A magnetic field `vec(B)` is directed into the page. the induced emf in the circuit at any time t is proportional to

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(a) 85.2 Wb, (b) 56.8 V, (c) 1
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Two straight conducting rails form a right angle where their ands are joined. A conducting bar contanct with the rails starts at vertex at the time t=0 & moves symmetrically with a constant velocity of 5.2 m//s to the right as shown in figure. A 0.35 T magnetic field point out of the page. Calculate: (i) The flux through the tringle by the rails & ber at t=3.0 s . (ii) The emf around the tringle at that time. In what manner does the emf around the tringle vary with time.

Two straight conducting rails from a right angle where their end are joined. A conducting bar polaced over the rails starts at vertex at the time t=0 and moves with a constant velocity v to the right as shown in the figure. Calculate (a) the flux through the triangle (isosceles) by the rails and bar at t=t_(0) the emf around the triangle at that time (c) in what manner does the emf around the triangle vary with time

A conducting rod, with a resistor of resistance R. is pulled with constant speed v on a smooth conducting rail as shown in figure. A constant magnetic field vecB is directed into the page. If the speed of the bar is doubled, by what factor does the rate of heat dissipation across the resistance R change?

The two conducting rails are placed perpendicular to each other, such that their ends are joined as shown in figure. A conducting bar is now placed over the rails and start moving with constant velocity v starting from the vertex at time t = 0. (i) The flux through the triangle (isosceles) by the rails and bar at t=t_(0) . (ii) The emf around the triangle at that time. (iii) In what manner does the emf around the triangle vary with time.

A conducting bar is slid at a constant velocity v along two conducting rods. The rods ar seprated by a distance l and connected across a resistor R. The entire apparatus is placed in an external magnetic field B directed into the page The induced current in the above circuit is:

Two parallel long smooth conducting rails separated by a distance l are connected by a movable conducting connector of mass m . Terminals of the rails are connected by the resistor R and the capacitor C as shown in figure. A uniform magnetic field B perpendicular to the plane of the rail is switched on. The connector is dragged by a constant force F . Find the speed of the connector as a function of time if the force F is applied at t = 0 . Also find the terminal velocity of the connector.

A rod of length 10 cm made up of conducting and non-conducting material (shaded part is non-conducting). The rod is rotated with constant angular velocity 10 rad//s about point O , in constant magnetic field of 2 T as shown in the figure. The induced emf between the point A and B of rod will be:

in fig. The four rods have lambda resistance per unit length. The arrengement is kept in a magnetic field of constant magnitude B and directed perpendicular to the plane of the figure and directing in ward. Initially, the sides as shown form a square. Now each wire starts moving with constant velocity v toward the opposite wire. Find as a function of time: (a) induced emf in the circuit. (b) induced current in the circuit with direction. ( c ) force required on each wire to keep its velocity consatnt. (d) total power required to maintain constant velocity. (e) thermal power developed in the circuit.

RESNICK AND HALLIDAY-ELECTROMAGNETIC INDUCTION-PROBLEMS
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  2. A length of copper wire carries a current of 3.5 A uniformly distribut...

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  3. Two straight conducting rails form a right angle where their ends are ...

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  5. A solenoid that is 85.0 cm long has a cross-sectional area of 17.0 cm^...

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  6. A rectangular loop (area = 0.15 m^(2)) turns in a uniform magnetic fie...

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  7. For the circuit of Fig. 30-29, assume that ~ = 10.0 V, R = 112 Omega, ...

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  8. In Fig. 30-44, after switch S is closed at time t = 0, the emf of the ...

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  9. A toroidal inductor with an inductance of 90 mH encloses a volume of 0...

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  10. Two solenoids are part of the spark coil of an automobile. When the cu...

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  11. A small circular loop of area 2.00 cm^(2) is placed in the plane of, a...

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  12. In Fig. 30-45 , a rectangular loop of wire with length a= 2.2 cm, widt...

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  13. In Fig. 30-46, a stiff wire bent into a semicircle of radius a = 1.4 c...

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  14. The current in an RL circuit builds up to one-third of its steady-stat...

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  15. As seen in Fig. 30-47, a square loop of wire has sides of length 3.0 c...

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  16. What must be the magnitude of a uniform electric field if it is to hav...

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  17. A long solenoid has a diameter of 12.0 cm. When a current i exists in ...

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  18. Two inductances L(1) & L(2) are connected in series & are seperated by...

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  19. Two coils connected as shown in Fig. 30-48 separately have inductances...

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  20. Inductors in parallel. Two inductors L(1) and L(2) are connected in pa...

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