I -V characteristic of a copper wire of length L and area of cross-section A is shown in…
Physics · NEET · NTA Exams — Current Electricity
\(\text { I }\)-V characteristic of a copper wire of length L and area of cross-section A is shown in figure. The slope of the curve become:
\(\text { V }\)
- more if the experiment is performed at higher temperature
- more if a wire of steel of same dimension is used
- more if the length of the wire is increased
- less if the length of the wire increased
Answer
(D) less if the length of the wire increased
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- The resistance of a wire at 300 K is found to be 0.3 Ω. If the temperature coefficient of resistance of wire…
- Incandescent bulbs are designed by keeping in mind that the resistance of their filament increases with the…
- According to Joule's law, if the potential difference across a conductor having a material of specific…
- A material 'B' has twice the specific resistance of 'A'. A circular wire made of 'B' has twice the diameter…
- Two cities are 150 km apart. Electric power is sent from one city to another city through copper wires. The…
- At room temperature, copper has free electron density of 8.4 10^ 24 ~m ^ -3 . The electron drift velocity in…
- Various experiments are performed on a resistance wire of 0.5 m length. In which of the following experiments…
- The water in an electric kettle begins to boil in 15 minutes after being switched on. If the water is…
More Current Electricity questions · Browse all practice questions