Physics-
General
Easy
Question
In the above circuit, C denotes the balance position on the potentiometer wire AB. Which of the following procedures can shift C towards the end B?
a) replacing the driving cell X by one with a smaller EMF
b) adding a resistance in series with the galvanometer G
c) increasing the resistance of the rheostat R
- a, b and c
- a and b only
- b and c only
- a and (c) only
The correct answer is: a and (c) only
Related Questions to study
chemistry-
Identify Z in the following series 
Identify Z in the following series
chemistry-General
chemistry-
Which does not give iodoform reaction?
Which does not give iodoform reaction?
chemistry-General
chemistry-
Which one of the following compounds when heated with KOH and a primary amine gives carbylamine test?
Which one of the following compounds when heated with KOH and a primary amine gives carbylamine test?
chemistry-General
chemistry-
The well known insecticide – gammexane is one of the steroisomers of hexachlorocyclohexane. The reagent useful for conversion of benzene into hexa chlorocyclohexane is
The well known insecticide – gammexane is one of the steroisomers of hexachlorocyclohexane. The reagent useful for conversion of benzene into hexa chlorocyclohexane is
chemistry-General
chemistry-
Ethylene dichloride and ethylidene dichloride are isomeric compounds. Identify the statement which is not applicable to both of them
Ethylene dichloride and ethylidene dichloride are isomeric compounds. Identify the statement which is not applicable to both of them
chemistry-General
physics-
The coordinates of the centre of the smallest circle passing through the origin and having 
as a diameter are
The coordinates of the centre of the smallest circle passing through the origin and having as a diameter are
physics-General
chemistry-
Which one of the following formulae does not correctly represent the bonding capacities of the two atoms involved?
Which one of the following formulae does not correctly represent the bonding capacities of the two atoms involved?
chemistry-General
chemistry-
The reactivity of the compounds
(i) MeBr
(ii) PhCH2Br
(iii) MeCl
(iv)p-MeOC6H4Br decreases as
The reactivity of the compounds
(i) MeBr
(ii) PhCH2Br
(iii) MeCl
(iv)p-MeOC6H4Br decreases as
chemistry-General
chemistry-
A compound which does not give iodoform test on treatment with alkali and iodine is
A compound which does not give iodoform test on treatment with alkali and iodine is
chemistry-General
chemistry-
Chlorobenzene reacts with Mg in dry ether to give a compound (a) which further reacts with ethanol to yield
Chlorobenzene reacts with Mg in dry ether to give a compound (a) which further reacts with ethanol to yield
chemistry-General
chemistry-
TherelativecomparisionofequilibriumconstantsofadditionofRMgBronfourcarbonylcompoundshasbeen shown by the graph below.
Which compound corresponds to Gif the four given compounds are:
TherelativecomparisionofequilibriumconstantsofadditionofRMgBronfourcarbonylcompoundshasbeen shown by the graph below.
Which compound corresponds to Gif the four given compounds are:
chemistry-General
chemistry-
TherelativecomparisionofequilibriumconstantsofadditionofRMgBronfourcarbonylcompoundshasbeen shown by the graph below.
Which compound corresponds to H if the four given compounds are:
TherelativecomparisionofequilibriumconstantsofadditionofRMgBronfourcarbonylcompoundshasbeen shown by the graph below.
Which compound corresponds to H if the four given compounds are:
chemistry-General
chemistry-
Methylrediscommonlyusedasindicatorforacidbasetitrations.ItispreparedbytreatingNaNO2/HCIwith anthranilicacidandtheresultingsolutionismixedwithN,Ndimethylanilineandshakedwellthesolutionfor some minutes to get “MethylRed”.
Given: 
ThetwoorganicmaterialsanthranilicacidandN,NdimethylanilineusedinpreparationofmethylRedcanbe best distinguished by:
Methylrediscommonlyusedasindicatorforacidbasetitrations.ItispreparedbytreatingNaNO2/HCIwith anthranilicacidandtheresultingsolutionismixedwithN,Ndimethylanilineandshakedwellthesolutionfor some minutes to get “MethylRed”.
Given:
ThetwoorganicmaterialsanthranilicacidandN,NdimethylanilineusedinpreparationofmethylRedcanbe best distinguished by:
chemistry-General
chemistry-
Methylrediscommonlyusedasindicatorforacidbasetitrations.ItispreparedbytreatingNaNO2/HCIwith anthranilicacidandtheresultingsolutionismixedwithN,Ndimethylanilineandshakedwellthesolutionfor some minutes to get “MethylRed”.
Given:
Which is most likely to be “Methyl Red”?
Methylrediscommonlyusedasindicatorforacidbasetitrations.ItispreparedbytreatingNaNO2/HCIwith anthranilicacidandtheresultingsolutionismixedwithN,Ndimethylanilineandshakedwellthesolutionfor some minutes to get “MethylRed”.
Given:
Which is most likely to be “Methyl Red”?
chemistry-General
chemistry-
Which statement(s) is/are correct :
Which statement(s) is/are correct :
chemistry-General
