1.

A charge is distributed along an infinite curved line in space with linear charge distribution . What will be the amount of force on a point charge q kept at a certain distance from the line?

A. q ( frac { lambda}{r^2} hat{r} )dl
B. q ( frac { lambda}{r^2} hat{r} )dr
C. q ( frac { lambda}{r^3} hat{r} )dl
D. q ( frac { lambda}{r^2} )
Answer» B. q ( frac { lambda}{r^2} hat{r} )dr


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