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प्रश्न
The differences between the electrostatic potential of the positive and 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 and the negative end of an electric cell is the potential difference of the cell.
Explanation:
This represents the electrical pressure difference between the two terminals of the cell. It determines how much energy is supplied to the electric charges to move them through a circuit. Without this potential difference, electric current cannot flow.
संबंधित प्रश्न
What is meant by saying that the electric potential at a point is 1 volt?
The p.d. across a lamp is 12 V. How many joules of electrical energy are changed into heat and light when:
a charge of 1 C passes through it?
The values of potential difference V applies across a resistor and the corresponding values of current I flowing in the resistor are given below:
| Potential differences, V (in volts) | : | 2.5 | 5.0 | 10.0 | 15.0 | 20.0 | 25.0 |
| Current, I (in amperes) | : | 0.1 | 0.2 | 0.4 | 0.6 | 0.8 | 1.0 |
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(ii) the p.d. across each resistor,
(iii) the terminal voltage of the cell and
(iv) the voltage drop.
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State Ohm’s law.
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