Physics · Electric current: drift velocity, mobility and their relation with electric current
A steady current is passing through a linear conductor of non uniform cross- sec
A steady current is passing through a linear conductor of non uniform cross- section. The net quantity of charge crossing any cross section per second is
- A. Independent of area of cross-section
- B. Directly proportional to the length of the conductor
- C. Directly proportional to the area of cross section.
- D. Inversely proportional to the length of the conductor
Step-by-step solution
For a steady current, the current (net charge crossing per second) is constant throughout the conductor due to conservation of charge. The cross-sectional area may vary, but the current remains the same because charge cannot accumulate. Thus, it is independent of area of cross-section.
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