Physics-
General
Easy
Question
In the circuit shown L1, L2, L3, and L4 are identical light bulbs. There are six voltmeters connected to the circuit as shown. Assume that the voltmeters are ideal. If L3 were to burn out, opening the circuit, which voltmeter(s) would read zero volts?
- none would read zero
- only V3
- only V4
- only V3, V4, and V5
The correct answer is: only V4
Related Questions to study
physics-
The potentiometer circuit shown is used to find the internal resistance of the cell E. At balance, the galvanometer pointer does not deflect, and NO current flows through
a) the potentiometer wire PQ
b) the resistor R
c) the galvanometer G
The potentiometer circuit shown is used to find the internal resistance of the cell E. At balance, the galvanometer pointer does not deflect, and NO current flows through
a) the potentiometer wire PQ
b) the resistor R
c) the galvanometer G
physics-General
physics-
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
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
physics-General
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chemistry-General
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Which does not give iodoform reaction?
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chemistry-General
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chemistry-General
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chemistry-General
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Ethylene dichloride and ethylidene dichloride are isomeric compounds. Identify the statement which is not applicable to both of them
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The coordinates of the centre of the smallest circle passing through the origin and having 
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physics-General
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chemistry-General
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(ii) PhCH2Br
(iii) MeCl
(iv)p-MeOC6H4Br decreases as
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(ii) PhCH2Br
(iii) MeCl
(iv)p-MeOC6H4Br decreases as
chemistry-General
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A compound which does not give iodoform test on treatment with alkali and iodine is
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Chlorobenzene reacts with Mg in dry ether to give a compound (a) which further reacts with ethanol to yield
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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
