The values of current (I) flowing through a given resistor of resistance (R), for the corresponding values of potential difference (V) across the resistor are given below: V (volts) 0.5 1.0 1.5 2.0 2.5 3.0 4.0 5.0 I (amperes) 0.1 0.2 0.3 0.4 0.5 0.6 0.8 1.0 Plot a graph between current (I) and potential difference (V) and determine the resistance (R) of the resistor.

CBSE Class 10 Science 2018 Solved Paper - Question 27

CBSE Class 10 Science 2018 Solved Paper

Question : 27 of 27

Marks: +1, -0

The values of current (I) flowing through a given resistor of resistance (R), for the corresponding values of potential difference (V) across the resistor are given below:

V (volts)	$0.5$	$1.0$	$1.5$	$2.0$	$2.5$	$3.0$	$4.0$	$5.0$
I (amperes)	$0.1$	$0.2$	$0.3$	$0.4$	$0.5$	$0.6$	$0.8$	$1.0$

Plot a graph between current (I) and potential difference

(V)

and determine the resistance (R) of the resistor.

Solution:

We know that,

{\V}=ℝ

From the graph,

{\V}=0.5

{\I}\;=0.1

0.5\;=0.1 × {\R}

\;{0.5}/{0.1}\;= {\R}

{\R}\;=5 Ω .

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