Physics-
General
Easy

Question

A galvanometer has resistance G and a current I subscript a end subscript flowing in it produces full scale deflection. S subscript 1 end subscript is the value of the shunt, which converts it into an ammeter of range O-I and S subscript 2 end subscript is the value of the shunt for the range O-2I. The ratio fraction numerator S subscript 1 end subscript over denominator S subscript 2 end subscript end fraction is :

  1. fraction numerator S subscript 1 end subscript over denominator S subscript 2 end subscript end fraction   equals   open parentheses fraction numerator 2 I minus I subscript a end subscript over denominator I minus I subscript a end subscript end fraction close parentheses    
  2. fraction numerator S subscript 1 end subscript over denominator S subscript 2 end subscript end fraction   equals   fraction numerator 1 over denominator 2 end fraction   open parentheses fraction numerator I minus I subscript a end subscript over denominator 2 I minus I subscript a end subscript end fraction close parentheses    
  3. 2    
  4. 1    

The correct answer is: fraction numerator S subscript 1 end subscript over denominator S subscript 2 end subscript end fraction   equals   open parentheses fraction numerator 2 I minus I subscript a end subscript over denominator I minus I subscript a end subscript end fraction close parentheses


    S subscript 1 end subscript equals fraction numerator I subscript a end subscript over denominator I minus I subscript 1 end subscript end fraction G
    S subscript 2 end subscript equals fraction numerator I subscript a end subscript over denominator 2 I minus I subscript a end subscript end fraction G
    therefore   fraction numerator S subscript 1 end subscript over denominator S subscript 2 end subscript end fraction   equals   fraction numerator 2 I minus I subscript a end subscript over denominator I minus I subscript a end subscript end fraction

    Related Questions to study

    General
    Physics-

    Specific charge on a proton is 9.6 cross times 10 to the power of 7 end exponent C/Kg. A proton is moving in a magnetic field of IT in circular path of 0.5 m radius. The energy of proton in MeV is:

    Specific charge on a proton is 9.6 cross times 10 to the power of 7 end exponent C/Kg. A proton is moving in a magnetic field of IT in circular path of 0.5 m radius. The energy of proton in MeV is:

    Physics-General
    General
    Physics-

    The minimum value of V0 such that ultimately it rolls on the upper surface. If distance AB is very large. (S is perfectly rough and V0 = 2 R omega subscript 0 end subscript)

    The minimum value of V0 such that ultimately it rolls on the upper surface. If distance AB is very large. (S is perfectly rough and V0 = 2 R omega subscript 0 end subscript)

    Physics-General
    General
    Physics-

    The angular velocity of a wheel increases from 1200 rpm to 4500 rpm in 10 s. The number of revolution made during this time is

    The angular velocity of a wheel increases from 1200 rpm to 4500 rpm in 10 s. The number of revolution made during this time is

    Physics-General
    parallel
    General
    Physics-

    A uniform thin rod of mass M and length L is standing vertically along the Y–axis on a smooth horizontal surface with its lower end at origin (0, 0). A slight disturbance at t = 0 causes the lower end to slip on smooth surface along the positive X–axis and the rod starts falling. The path followed by the centre of mass of the rod during its fall is a/an.

    A uniform thin rod of mass M and length L is standing vertically along the Y–axis on a smooth horizontal surface with its lower end at origin (0, 0). A slight disturbance at t = 0 causes the lower end to slip on smooth surface along the positive X–axis and the rod starts falling. The path followed by the centre of mass of the rod during its fall is a/an.

    Physics-General
    General
    Chemistry-

    At 40 ℃, the vapour pressures of pure liquids, benzene and toluene are 160 mm Hg and 60 mm Hg, respectively.At the same temperature, the vapour pressure of an equimolar solution of the two liquids, assuming the ideal solution, should be

    At 40 ℃, the vapour pressures of pure liquids, benzene and toluene are 160 mm Hg and 60 mm Hg, respectively.At the same temperature, the vapour pressure of an equimolar solution of the two liquids, assuming the ideal solution, should be

    Chemistry-General
    General
    Chemistry-

    The molecular weight of benzoic acid in benzene as determined by depression in the freezing point method corresponds to

    The molecular weight of benzoic acid in benzene as determined by depression in the freezing point method corresponds to

    Chemistry-General
    parallel
    General
    Chemistry-

    When mercuric iodide is added to the aqueous solution of potassium iodide,

    When mercuric iodide is added to the aqueous solution of potassium iodide,

    Chemistry-General
    General
    Chemistry-

    An example of colligative property is

    An example of colligative property is

    Chemistry-General
    General
    Chemistry-

    A molal solution is one that contains 1 mol of a solute in

    A molal solution is one that contains 1 mol of a solute in

    Chemistry-General
    parallel
    General
    Chemistry-

    Which condition is not satisfied by an ideal solution?

    Which condition is not satisfied by an ideal solution?

    Chemistry-General
    General
    Chemistry-

    Based on the given diagram, which of the following statements regarding the solutions of two miscible volatile liquids are correct?
    1.Plots AD and BC show that Raoult''s law is obeyed for the solution in which B is a solvent and A is the solute and as well as for that in which. A is solvent and B is solute
    2.Plot CD shows that Dalton''s law of partial pressures is observed by the binary solutions of components A and B
    3.E F plus E G equals E H; and AC and BD corresponds to the vapour pressures of the pure solvents A andB,respectively

    Select the correct answer using the codes given below: Codes:

    Based on the given diagram, which of the following statements regarding the solutions of two miscible volatile liquids are correct?
    1.Plots AD and BC show that Raoult''s law is obeyed for the solution in which B is a solvent and A is the solute and as well as for that in which. A is solvent and B is solute
    2.Plot CD shows that Dalton''s law of partial pressures is observed by the binary solutions of components A and B
    3.E F plus E G equals E H; and AC and BD corresponds to the vapour pressures of the pure solvents A andB,respectively

    Select the correct answer using the codes given below: Codes:

    Chemistry-General
    General
    Chemistry-

    For a dilute solution, Raoult’s law states that

    For a dilute solution, Raoult’s law states that

    Chemistry-General
    parallel
    General
    Chemistry-

    A mixture of benzene and toluene forms

    A mixture of benzene and toluene forms

    Chemistry-General
    General
    Chemistry-

    F e C l subscript 3 end subscripton reaction withK subscript 4 end subscript open square brackets F e left parenthesis C N right parenthesis subscript 6 end subscript close square bracketsin aqueous solution gives blue colour. These are separated by a semi-permeable membrane AB as shown. Due to osmosis, there is

    F e C l subscript 3 end subscripton reaction withK subscript 4 end subscript open square brackets F e left parenthesis C N right parenthesis subscript 6 end subscript close square bracketsin aqueous solution gives blue colour. These are separated by a semi-permeable membrane AB as shown. Due to osmosis, there is

    Chemistry-General
    General
    Chemistry-

    The molalfreezing point constant of water is 1.86 K m to the power of negative 1 end exponent, If 342 g of cane sugar (C subscript 12 end subscript H subscript 22 end subscript O subscript 11 end subscript right parenthesisis dissolved in 1000 g of water, the solution will freeze at

    The molalfreezing point constant of water is 1.86 K m to the power of negative 1 end exponent, If 342 g of cane sugar (C subscript 12 end subscript H subscript 22 end subscript O subscript 11 end subscript right parenthesisis dissolved in 1000 g of water, the solution will freeze at

    Chemistry-General
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.