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A coil is wound on a rectangular frame. ...

A coil is wound on a rectangular frame. Keeping the number of turns per unit length constant, if the linear dimensions of the coil are doubled then the coefficient of self induction of the coil will become.

A

4 times

B

12 times

C

16 times

D

8 times

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AAKASH SERIES-ELECTROMAGNETIC INDUCTION-EXERCISE-III
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  2. A metal rod of resistance R is fixed along a diameter of a conducting ...

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  3. An annular disc of copper with inner and outer radii r and R is rotati...

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  4. A rectangular loop with a sliding connector of length l=10m is the si...

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  5. A squre loop of side a is placed in the same plane as a long stainght ...

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  6. A square metal wire loop of side 20 cm and resistance 2Omega is moved ...

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  7. IN a retangle ABCD (BC = 2AB). The moment of inertia along which aix...

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  8. A rectangulare loop of length l and breadth b is placed at distance of...

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  9. A conducting square frame of side .a. and a long straight wire carryin...

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  10. If current is decreasing at a rate of 1000 As^(-1) p.d. between A and ...

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  11. A coil is wound on a rectangular frame. Keeping the number of turns pe...

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  12. When the current in the portion of the circuit shown in the figure is...

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  13. A small square loop of wire of side l is placed inside a large square ...

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  14. The coefficient of mutual induction between two coils is 4H. If the cu...

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  15. A 50 Hz AC current of crest value 1 A flows through the primary of a t...

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  16. Two coils have self-inductance L(1)=4mHandL(2)=1mH respectively. The c...

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  17. A short-circuited coil is placed in a time-varying magnetic field. Ele...

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  18. Shown in the figure is a circular loop of radius, r and resistance R. ...

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  19. A uniform magnetic field is restricted within a region of radius r. Th...

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  20. A magnetic flux through a stationary loop with a resistance R varies d...

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