TS EAMCET · Physics · Capacitance
An infinite line of charge with uniform line charge density of is placed along the -axis. A charge of is placed on the -axis at a distance of from the origin. At what distance from the origin on the -axis, the total electric field is zero. (Assume )
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
For the total electric field E to be zero, the electric field due to point charge & line charge should be zero, ∴ Eline=Epoint ∴ 2Kλx=Kq3-x2 ∴ 2x=13-x2 on solving quadratic equation we get, x=4.5 or x=2 so…
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