Five readings of current while studying the dependence of Potential Difference across Resistor were taken. Plotting a graph, a straight line was obtained. What does it signify?

The graph with a straight line of potential difference (V) across a resistor on current (I) passing through it indicates that the potential difference (V) is directly proportional to the current (I) which flows through it, i.e., (V ∝ I).

The method to find the resistance of a resistor by the help of the graph is to read the current value in amperes at the given interval, which is I₀, in relation to a given voltmeter reading (V₀). Now, from Ohm’s law, we are aware that:

V = I × R

For resistance, the formula can be also written as,

R = VI

Now, by putting the value of V = V₀ and I = I₀, we can obtain:

R = V₀(value of potential difference) / I₀(value of current)

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Five readings of different values of current while studying the dependence of Potential Difference across Resistor were taken. Plotting a graph between V and I, a straight line was obtained. What does it signify?

Related Questions

CBSE CLASS XII Related Questions

1.
Draw the number of scattered particles versus the scattering angle graph for scattering of alpha particles by a thin foil. Write two important conclusions that can be drawn from this plot.

2.
Write any two features of nuclear forces.

3.
If both the number of protons and the neutrons are conserved in each nuclear reaction, in what way is mass converted into energy (or vice versa) in a nuclear reaction? Explain.

4.
A tank is filled with a liquid to a height of \( 12.5 \, \text{m} \). The apparent depth of a needle lying at the bottom of the tank is measured to be \( 9.0 \, \text{m} \). Calculate the speed of light in the liquid.

6.
Two small identical metallic balls having charges \( q \) and \( -2q \) are kept far at a separation \( r \). They are brought in contact and then separated at distance \( \frac{r}{2} \). Compared to the initial force \( F \), they will now:

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Five readings of different values of current while studying the dependence of Potential Difference across Resistor were taken. Plotting a graph between V and I, a straight line was obtained. What does it signify?

Related Questions

CBSE CLASS XII Related Questions

1. Draw the number of scattered particles versus the scattering angle graph for scattering of alpha particles by a thin foil. Write two important conclusions that can be drawn from this plot.

2. Write any two features of nuclear forces.

3. If both the number of protons and the neutrons are conserved in each nuclear reaction, in what way is mass converted into energy (or vice versa) in a nuclear reaction? Explain.

4.A tank is filled with a liquid to a height of \( 12.5 \, \text{m} \). The apparent depth of a needle lying at the bottom of the tank is measured to be \( 9.0 \, \text{m} \). Calculate the speed of light in the liquid.

6.Two small identical metallic balls having charges \( q \) and \( -2q \) are kept far at a separation \( r \). They are brought in contact and then separated at distance \( \frac{r}{2} \). Compared to the initial force \( F \), they will now:

Similar Physics Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Draw the number of scattered particles versus the scattering angle graph for scattering of alpha particles by a thin foil. Write two important conclusions that can be drawn from this plot.

2.
Write any two features of nuclear forces.

3.
If both the number of protons and the neutrons are conserved in each nuclear reaction, in what way is mass converted into energy (or vice versa) in a nuclear reaction? Explain.

4.
A tank is filled with a liquid to a height of \( 12.5 \, \text{m} \). The apparent depth of a needle lying at the bottom of the tank is measured to be \( 9.0 \, \text{m} \). Calculate the speed of light in the liquid.

6.
Two small identical metallic balls having charges \( q \) and \( -2q \) are kept far at a separation \( r \). They are brought in contact and then separated at distance \( \frac{r}{2} \). Compared to the initial force \( F \), they will now: