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प्रश्न
Two copper wires are of the same length, but one is thicker than the other. Which wire will have more specific resistance?
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उत्तर
We know that the specific resistance(ρ) does not depend on the length or thickness of the wire. It depends upon the material used. It will be the same in this case.
संबंधित प्रश्न
Two copper wires are of the same length, but one is thicker than the other. Which wire will have more resistance?
How does the resistance of a wire depend on its length? Give a reason for your answer.
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 |
What is resistance?
The resistance of a straight conductor is independent of ______.
What is the maximum resistance one can make with ten 1Ω resistors?
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 ______.
Three resistors are connected in parallel with a battery. If the current in each resistor is 2A, then the current through the battery will be ______.
Define the following:
Fixed resistor
Observe the given circuit diagram and answer the questions that follow:
- Calculate the resistance of the circuit when the key K completes the circuit.
- Calculate the current through 3Ω resistance when the circuit is complete.
