Physics-
General
Easy
Question
A metallic conductor of irregular cross-section is as shown in the figure. A constant potential difference is applied across the ends (1) and (2). Then :
- the current at the cross-section P equals the current at the cross-section Q
- the electric field intensity at P is less than that at Q
- the rate of heat generated per unit time at Q is greater than that at P
- the number of electrons crossing per unit area of cross-section at P is less than that at Q.
The correct answer is: the current at the cross-section P equals the current at the cross-section Q
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