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The plane of the coil of tangent galvano...

The plane of the coil of tangent galvanometer is kept parallel to magnetic meridian to

A

A is true, B is false

B

A is false, B is true

C

A & B are true

D

A & B are false

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The correct Answer is:
C
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Before using tangent galvanometer for the measurement of current, why is the plane of coil of tangent galvanometer set in the magnetic meridian?

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A tangent galvanometer has a coil with 50 turns and radius equal to 4 cm . A current of 0.1 A is passing through it. The plane of the coil is set parallel to the earth's magnetic meridian. If the value of the earth's horizontal component of the magnetic field is 7xx10^(-5) Tesla and mu_(0)=4pixx10^(-7)Weber//ampxxm then the deflection in the galvanometer needle will be

A magnetic needle free to rotate in a vertical plane parallel to magnetic meridian has its north tip down at 60^@ with the horizontal. The horizontal component of earth's magnetic field at that place is 0*4G . Determine the magnitude of earth's magnetic field at the place.

A moving coil galvanometer has 50 turns and each turn has an area 210 . The magnetic field produced by the magnet inside the galvanometer is 0.02 . The torsional constant of the suspension wire is 10 . When a current flows through the galvanometer, a full scale deflection occurs if the coil rotates by 0.2 . The resistance of the coil of the galvanometer is 50 . This galvanometer is to be converted into an ammeter capable of measuring current in the range 01.0 . For this purpose, a shunt resistance is to be added in parallel to the galvanometer. The value of this shunt resistance, in , is __________.

The number of turns and radius of cross-section of the coil of a tangent galvanometer are doubled. The reduction factor K will be

A magnetic needle free to rotate in a vertical plane parallel to the magnetic meridian has its north tip pointing down at 22^@ with the horizontal. The horizontal component of the earth's magnetic field at the place is known to be 0*35G . Determine the strength of the earth's magnetic field at the place.

A magnetic needle free to rotate in a vertical plane parallel to the magnetic meridian has its north tip down at 60^(@) with the horizontal.The horizontal component of the earth's magnetic field at the place is known to be 0.4G .Determine the magnitude of the earth's magnetic field at the place.

In the above problem. The plane of the coil is initially kept parallel to B . The coil is rotated by an angle theta about the diameter perpendicular to B and charge of amount Q flows through it. Choose the correct alternatives.

AAKASH SERIES-MOVING CHARGES AND MAGNETISM-EXERCISE-IA
  1. A) Tangent galvanometer is a moving magnet type galvanometer B) Tang...

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  2. The coil of a tangent galvanométer is put in the magnetic meridian.

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  3. The plane of the coil of tangent galvanometer is kept parallel to magn...

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  4. The magnetic needle of a tangent galvanometer is defiected at an angle...

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  5. If 'r' is the radius and 'n' is number of turns of coil of a T.G, then...

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  6. A rectangular loop carrying a current i(2) situated near a long straig...

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  7. When a current loop is placed in a uniform magnetic field i) barF(R)...

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  8. A flat , rectangular coil, carrying current, is placed beside a long s...

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  9. A moving coil galvanometer can be converted into a voltmeter by connec...

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  10. The correct statement among the following is:

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  11. Statement A : The resistance of ideal ammeter is zero Statement B : ...

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  12. Statement A: Ammeter is a low resistance galvanometer Statement B: V...

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  13. To increase the range of a voltmeter we need to connect a suitable:

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  14. An ammeter and a voltmeter of resistance R are connected in series to ...

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  15. Two identical galvanometers are converted into an ammeter and a millia...

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  16. A galvanometer of resistance, G, is shunted by a resistance S ohm. To ...

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  17. A galvanometer can be converted into either an ammeter or a voltmeter....

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  18. The correct match is

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  19. The correct match is

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