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प्रश्न
The differences between the electrostatic potential of the positive end the negative end of an electric cell is the ______ of the cell.
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उत्तर
The differences between the electrostatic potential of the positive end the negative end of an electric cell is the potential difference of the cell.
संबंधित प्रश्न
How is a voltmeter connected in the circuit to measure the potential difference between two points? Explain with the help of a diagram.
State whether a voltmeter has a high resistance of a low resistance. Give reason for your answer.
The unit for measuring potential difference is:
The V-I graph for a series combination and for a parallel combination of two resistors is shown in Fig – 8.38. Which of the two, A or B, represents the parallel combination? Give a reason for your answer.
The following table shows current in Amperes and potential difference in Volts.
Which law will the graph prove? Explain the law.
State whether the potential is a scalar or vector?
Which one of the following is the correct set-up for studying the dependence of the current on the potential difference across a resistor and why?
A cell of e.m.f 2.0 V and internal resistance 1Ω is connected to the resistors of 3Ω and 6Ω in series. Calculate:
(i) the current drawn from the cell,
(ii) the p.d. across each resistor,
(iii) the terminal voltage of the cell and
(iv) the voltage drop.
Name a device that helps to maintain a potential difference across conductors.
Two charged spherical conductors of radius R1 and R2 are connected by a wire. Then the ratio of surface charge densities of the spheres `(σ_1//σ_2 )` is ______.
