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Magnetic induction at a point due to a s...

Magnetic induction at a point due to a small element of current carrying conductor is

A

Both 'A' and 'R' are true and 'R' is the correct explanation of 'A'.

B

Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A'

C

'A' is true and 'R' is false

D

'A' is false and 'R' is false

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-MOVING CHARGES AND MAGNETISM-EXERCISE-IB
  1. Assertion : A planar circular loop of area A and carrying current I is...

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  2. Assertion : A charged particle can be accelerated in a cyclotron by th...

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  3. Magnetic induction at a point due to a small element of current carryi...

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  4. A current I flows along an inflinitely long straight thin walled tube....

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  5. (A) : Ampere's law holds for steady currents in straight conductor whi...

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  6. (A) : A spark occur between the poles of a switch when the switch is o...

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  7. STATEMENT-1: In electric circuits, wires carrying currents in opposite...

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  8. Assertion : Two parallel conducting wires carrying currents in opposit...

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  9. (A) : Torque on the coil is always maximum, when coil is suspended in ...

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  10. (A) : In case of M.C.G the torque on the coil is maximum in any positi...

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  11. Assertion : Earth's magnetic field does not affect the working of a mo...

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  12. (A) : The coil is wound over the metallic frame in moving coil galvano...

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  13. (A) : The tangent galvanometer can be made more sensitive by increasin...

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  14. (A) : Working of a moving coil galvanometer is based on heating effect...

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  15. (A) : A tangent galvanometer is used for measuring current. (R) : Ta...

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  16. Assertion: Reduction factor k of a tangent galvanometer helps in redu...

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  17. The M.I. of a ring of mass radius R about the axis passing through the...

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  18. (A) : Increasing the current sensitivity of an MCG may not necessarily...

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  19. (A) :· The range of given voltmeter can be both increased and decrease...

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  20. (A) : Voltmeter put across a part of the circuit, it reads slightly le...

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