Question

find the resistance whose vi graph is given below is ​

Answer 1

Answer:

Explanation:

If you simply extend the graph separately to x-axis and y-axis,you got the values of current and voltage easily.

From x-axis:

current=15 A

From y-axis:

voltage=9

As it is known:

V = IR

And R= V/I

Putting values:

R=9/15

 =3/5 ohm

So,the resistance is 3/5 ohm.

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Answer 2

The resistance for the given V-I graph is 3/5 Ω. (option b)

Given,

Refer figure. The V-I graph is given.

To find,

Resistance.

Solution,

It can be seen here, that a V-I graph is given in the figure.

Now, as we know that Ohm's law states the relationship between the voltage and current.

According to the Ohm's law,

$V \propto I$

$\implies V = IR$     ...(1)

where,

$V$ = Voltage across a conductor,

$I$ = Current flowing through it,

$R$ = Resistance of the conductor.

So, from the relation (1),

$R=\frac{V}{I}$

So, it can be said that the slope of the V-I graph gives the resistance.

Thus, from the given graph of V-I,

$R=\frac{3-0}{5-0} =\frac{3}{5}$

$\implies R=\frac{3}{5} \hspace{2} \Omega$

Therefore, the resistance for the given V-I graph is 3/5 Ω. (option b)

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