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A galvanometer has resistance 48Omega if...

A galvanometer has resistance `48Omega` if a shunt of `6Omega` is added with this, then fraction of current that passes through galvanometer is:

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The correct Answer is:
B
`v_(c )^(2) = v_(B)^(2) + 2g(h_(2) -h _(1)`
`rArr = v_(c ) = sqrt(45^(2) + 2 xx 10 xx 3) = sqrt(105) ms^(-1)`
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ALLEN -CURRENT ELECTRICITY-EXERCISE-V B
  1. In which of the following the carriers of electric current are electro...

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  2. To the potentiometer wire of L and 10Omega resistance, a battery of em...

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  3. A wire of resistance 12 Omega m^(-1) is bent to from a complete circle...

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  4. See the electrical circuit shown in this figure. Which of the followin...

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  5. A galvanometer having a coil resistance of 60 Omega shows full scale...

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  6. A student measures the terminal potential difference (V) of a cell (of...

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  7. If an electron revolves in the circular path of radius 0.5A^(@) at a f...

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  8. The external diameter of a 314 m long copper tube is 1.2 cm and the i...

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  9. In the shown arrangement of the experiment of the meter bridge if AC c...

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  10. A potentiometer circuit is setup as shown. The potential gradient acro...

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  11. A galvanometer has a coil of resistance 100 Omega and gives a full-sc...

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  12. A galvanometer has resistance 48Omega if a shunt of 6Omega is added wi...

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  13. For a the current loops shown in the figu re, kirchhoff's loop rule f...

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  14. If 2 ×10^(6) electrons/s are flowing through an area of cross section ...

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  15. A current of 2 A flows through a 2 Omega resistor when connected acros...

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  16. If power dissipated in the 9 Omega resistor in the resistor shown is 3...

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  17. In the circuit shown in the figure, if potentail at point A is taken t...

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

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  19. A thermocouple of negligible resistance produces an emf fo 40 mu V//^(...

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  20. Figure shows three resistor configurations R1,R2 and R3 connected to 3...

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