Q. 7.     The values of current I flowing in a given resistor for the corresponding values of potential difference V across the resistor are given below –

              I (amperes)     0.5     1.0     2.0     3.0     4.0
              V (volts)          1.6      3.4    6.7     10.2   13.2

Plot a graph between V and I and calculate the resistance of that resistor

Answers (1)

The plot between voltage and current is as shown :

The slope of the line gives resistance (R)

R=\frac{6.8}{2}=3.4\Omega

 

 

 

 

 

 

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