Three $V-I$ graphs are drawn individually for two resistors and their series combination. Out of $A, B, C$,which one represents the graph for the series combination of the other two? Give a reason for your answer.
(C) We know that for a $V-I$ graph,the slope represents the resistance $(R = V/I)$.
In a series combination,the equivalent resistance $(R_s = R_1 + R_2)$ is always greater than the individual resistances ($R_1$ and $R_2$).
Therefore,the graph with the highest slope represents the series combination.
In the given graph,line $C$ has the maximum slope compared to lines $A$ and $B$.
Thus,$C$ represents the series combination of the other two resistors.
In a series combination,the equivalent resistance $(R_s = R_1 + R_2)$ is always greater than the individual resistances ($R_1$ and $R_2$).
Therefore,the graph with the highest slope represents the series combination.
In the given graph,line $C$ has the maximum slope compared to lines $A$ and $B$.
Thus,$C$ represents the series combination of the other two resistors.
Explore More
Similar Questions
Two conductors,one having resistance $R$ and another $2R$ are connected in turn across a $dc$ source. If the rate of heat produced in the two conductors is $Q_{1}$ and $Q_{2}$ respectively,what is the value of $Q_{1} / Q_{2}$?
Easy
View SolutionYou are given three resistors of $10\, \Omega, 10\, \Omega, 20\, \Omega$,a battery of emf $2.5\, V$,a key,an ammeter,and a voltmeter. Draw a circuit diagram showing the correct connections of the given components such that the voltmeter gives a reading of $2.0\, V$.
Medium
View SolutionThe electrical appliance having higher power draws a larger current.
Easy
View SolutionWhat is meant by "electrical resistance" of a conductor? State how the resistance of a conductor is affected when $(i)$ a low current passes through it for a short duration; $(ii)$ a heavy current passes through it for about $30$ seconds.
Medium
View SolutionHow much work is done in moving a charge of $2 \ C$ from a point at $118 \ V$ to a point at $128 \ V$ (in $J$)?
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo