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The total magnetic induction at point O ...

The total magnetic induction at point O due to curved portion and straight portion in the following figure, will be

A

`(mu_0 I )/(2 pi r)[ pi - phi + tan phi ]`

B

`(mu_0 I )/( 2 pi r )`

C

`0`

D

`(mu_0 i)/(pi r) [ pi - phi+ tan phi]`

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-APPENDICES ( REVISION EXERCISE )-REVISION EXERCISE (MOVING CHANGES & MEGNETISM)
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  2. In the given figure net magnetic field at O will be

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  3. The total magnetic induction at point O due to curved portion and stra...

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  4. An infinitely long wire is bent in the form of a semicircle at the end...

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  5. The magnetic induction at centre O in the following figure will be

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  6. A wire loop carrying current I is placed in the x-y plane as shown. Ma...

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  7. Thick and thin wires give rise to 3 different squares x,y and z as sho...

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  8. If the resistance of the upper half of a rigid loop is twice of that o...

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  9. An infinitely long conductor PQR is bent to form a right angle as show...

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  10. A straight conductor of length 32 cm carries a current of 30A. Magneti...

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  11. Two parallel long wires carry currents 18A and 3A. When the currents a...

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  12. Due to straight current carrying conductor, a null point occurred at p...

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  13. A long straight wire along the Z-axis carries a current I in the negat...

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  14. A wire carrying a current i is first bent in the form of a square of s...

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  15. Two long mutually perpendicular conductors carrying currents I1 and I2...

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  16. Two long parallel wires carrying currents 2.5 A and I (ampere) in the ...

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  17. A toroid has a core (non-ferromagnetic) of inner radius 25 cm and oute...

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  18. In the shown in the figure AC and BD are straight lines and CED and AF...

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  19. A solenoid of length 'l' has N turns of wire closely spaced, each turn...

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  20. A 3.0 cm wire carrying a current of 10 A is placed inside a solenoid p...

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