# NEET Physics Mathematical Tools Questions Solved

Find electric field due to a uniformly charged, long and thin rod

[This question is only for Dropper and XII batch]

1. $\frac{k\lambda }{r}$

2. $\frac{k\lambda }{2r}$

3. $\frac{2k\lambda }{r}$

4. $\frac{k\lambda }{4r}$

Concept Videos :-

#16 | Calculus: Differential Equation
#19 | Numericals

Concept Questions :-

Integration

To find electric field, we enclose the distribution in a Gaussian cylinder of radius r and length l.

The flux linked with the cylinder

Variation of E with r is also shown graphically here

Difficulty Level:

• 29%
• 5%
• 67%
• 0%
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