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Can you associate vectors with (a) the l...

Can you associate vectors with (a) the length of a wire bent into a loop (b) a plane area (c ) a sphere ? Explain.

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A vector can be associated with a plane area
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Can you associate a vector with (a) the length of a wire bent into a loop (b) a plane area (c) a sphere.

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A rectangular metallic loop of length l and width b is placed coplanerly with a long wire carrying a current I . The loop is moved perpendicular to the wire with a speed v in the plane containing the wire and the loop. Calculate the emf induced in the loop when the rear end of hte loop is at a distance a from the wire. Solve by unsing Faraday's law for the flux thrugh the loop and also by replacing different sagments with equivalent batteries.

Three wires of equal lengths are bent in the form of loops. One of the loops is circle, another is a semi-circle and the third one is a square . They are placed in a uniform magnetic field and same electric current is passed through them. Which of the following loop configuration will experience greater torque ?

NCERT TAMIL-MOTION IN A PLANE-EXCERCISES
  1. A man can swim with a speed 4km/hr in still water. (a) How long does...

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  2. In a harbour, wind is blowing at the speed of 72 km //h and the flag ...

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  3. The ceiling of a long hall is 25 m high. What is the maximum horizonta...

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  4. A cricketer can throw a ball to a maximum horizontal distance of 100 m...

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  5. A stone tied to the end of a string 80 cm long is whirled in a horizon...

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  6. An aircraft executes a horizontal loop of radius 1 km with a steady sp...

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  7. Read each statement below carefully and state, with reasons, if it is ...

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  8. The position of a particle is given by r=3.0thati-2.0t^(2)hatj+4....

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  9. A particle starts from the origin at t=Os with a velocity of 10.0 hatj...

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  10. hati and hatj are unit vectors along x-axis and y-axis respectively wh...

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  11. For any arbitrary motion in space, which of the following relations ar...

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  12. Read each statement below carefully and state with reason and examples...

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  13. An aircraft is flying at a height of 3400 m above the ground. If the a...

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  14. A vector has magnitude and direction (i) Does it have a location in th...

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  15. A vector has both magnitude and direction. Does that mean anything tha...

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  16. Can you associate vectors with (a) the length of a wire bent into a lo...

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  17. A bullet fired at an angle of 30^(@) with the horizontal hits the gro...

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  18. A fighter plane flying horizontally at an altitude of 1.5 km with spe...

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  19. A cylclist is riding with a speed of 27 km h^-1. As he approaches a ci...

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  20. (a) Show that for a projectile the angle between the velocity and the...

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