Question

The graph of current I (on y-axis) Vs. potential difference V (on x-axis) is found to be a straight line.
The slope of the straight line gives
A voltage
B resistance
C reciporcal of resistance
D current

Answer 1

Answer:

Resistance. option b is the right answer..

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Answer 2

Graph between potential difference (V) and current (I) through a conductor, it's slope gives resistance. Option B is correct.

Ohm's law states that the relationship between current and potential difference has a linear graph. The x-axis is used to plot the voltage, while the y-axis is used to plot the current. This plot is also known as the V-I characteristics .

The conductor's resistance can be determined from the slope of a V-I graph.

From  graph the value of resistance can be determined by taking any value of voltage and its corresponding current value. According to the Ohm’s Law:

       $R= \frac{V}{I}$

∴ R = resistance

  V = voltage

   I = current.

Must remember that the slope of a V-I graph gives the resistance of the conductor and its SI units are ohm. The ohm’s law is obeyed by a conductor only if the physical conditions such as temperature, density, etc. remain unchanged.

Learn more about ohm's law-

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