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प्रश्न
Resistance of a wire depends on, ______.
विकल्प
temperature
geometry
nature of material
all the above
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उत्तर
all the above
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संबंधित प्रश्न
How does the resistance of a wire depend on its radius? Explain your answer.
Name three factors on which resistance of a given wire depends and state how is it affected by the factors stated by you.
Two wires of the same material and same length have radii 1 mm and 2 mm respectively. Compare their resistances.
Exercise.
The values of current (I) flowing through a resistor for various potential differences V across the resistor are given below. What is the value of resistor?
| I (ampere) | 0.5 | 1.0 | 2.0 | 3.0 | 4.0 |
| V (volt) | 1.6 | 3.4 | 6.7 | 10.2 | 13.2 |
The effective resistance of three resistors connected in series is lesser than the lowest of the individual resistances.
______ is the only non-metal that is a good conductor of electricity.
Three resistors are connected in series with a cell. If the current in each resistor is 1.5A, then the current through the cell will be ______.
The process of conduction of electric current through the solution is called ______.
Match the following:
| Column I | Column II | ||
| 1. | Resistor | a. | Galvanometer |
| 2. | Connecting wire | b. | Voltmeter |
| 3. | Current in an electric circuit | c. | Copper |
| 4. | Potential difference | d. | Constantan |
Two copper wires are of the same length, but one is thicker than the other. Which wire will have more specific resistance?
