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A long current carrying wire is bent as ...

A long current carrying wire is bent as shown. The magnetic field induction at O is

A

a. Zero

B

b. `(2sqrt2 mu_(0)i)/(piL)`

C

c. `(mu_(0)i)/(piL)`

D

d. `(sqrt2mu_(0)i)/(piL)`

Text Solution

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The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-MOVING CHARGES AND MAGNETISM-Assignment (Section B) Objective Type Questions (One option is correct)
  1. A long straight wire is kept along x-axis. It carries a current i in ...

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  2. There are two concentric circular loops. One loop of radius r is made ...

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  3. A long current carrying wire is bent as shown. The magnetic field indu...

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  4. A proton and an electron are projected into a region of uniform magnet...

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  5. The magnetic field at point P in the hollow cylindrical wire carrying ...

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  6. A charged particle of mass m is moving with a speed u in a circle of r...

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  7. In a region of space, both electric and magnetic field are present sim...

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  8. A thin disc of radius R has charge Q distributed uniformly on its surf...

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  9. A short current carrying conductor is placed perpendicular to the axis...

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  10. A ring carrying current l lies in x-z plane as shown. A short magnetic...

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  11. Figure shows an arrangement in which long parallel wires carrying equa...

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  12. The magnetic field at the centre of dotted circle in the arrangement s...

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  13. In an attempt to increases the current sensitivity of a moving coil ga...

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  14. What is the magnetic field |vec(B)| at the point P due to a current ca...

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  15. A wire of infinite length bent as shown in figure carries current l. W...

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  16. A wire PQR carrying a current l is bent as shown in the figure. It is ...

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  17. In the figure, the current l enters the circular loop of uniform wire ...

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  18. An electron is fired parallel to uniform electric and uniform magnetic...

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  19. The magnetic field inside a toroidal solenoid of radius R is B. If the...

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  20. A square loop of side a carris a current I. The magnetic field at the ...

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