Study the $V - I$ graph for a resistor as shown in the figure and prepare a table showing the values of $I$ (in amperes) corresponding to four different values of $V$ (in volts). Find the value of current $I$ (amperes) for $V=10$ volts. How can we determine the resistance of the resistor from this graph ?
Study the $V - I$ graph for a resistor as shown in the figure and prepare a table showing the values of $I$ (in amperes) corresponding to four different values of $V$ (in volts). Find the value of current $I$ (amperes) for $V=10$ volts. How can we determine the resistance of the resistor from this graph ?
| $V$(volt) | $2$ | $4$ | $6$ | $8$ |
| $I$ (amperes) | $1$ | $2$ | $3$ | $4$ |
When $V =10 volts , I =5$ amperes
$\therefore \quad R=\frac{V}{I}=\frac{10 V}{5 A}=2 \Omega$
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