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प्रश्न
Define the term resistance.
उत्तर
Resistance is the obstacle that the wire presents to the current flow.
संबंधित प्रश्न
Two wires of the same material and same length have radii 1 mm and 2 mm respectively. Compare their resistances.
What happens to the resistance, as the conductor is made thicker?
The resistance of a conductor is R. If Its length is doubled, then its new resistance will be ______.
______ is the only non-metal that is a good conductor of electricity.
If the area of cross-section of the conductor is doubled its resistance gets ______.
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 ______ is the measure of opposition offered by the component to the flow of electric current through it.
Define the following:
One ohm
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.
Two copper wires are of the same length, but one is thicker than the other. Which wire will have more specific resistance?
