Home
Class 12
PHYSICS
An infinitely long thin straight wire ha...

An infinitely long thin straight wire has uniform linear charge density of `1//3 "coul" m^(-1)` .Then the magnitude of the electric intensity at a point `18cm` away is

A

`0.33 xx10^(11) NC^(-1)`

B

`3 xx10^(11) NC^(-1)`

C

`0.66 xx10^(11) NC^(-1)`

D

`1.32 xx10^(11) NC^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
`lamda =1/3 Cm^(-1)`
r = 18cm = 0.18m
`E=lamda/(2piepsilon_0r)=(2xx1/3 xx9 xx10^9)/(0.18)=0.33 xx10^(11)N//C`
Promotional Banner

Similar Questions

Explore conceptually related problems

If the linear charge density of a cylinder is 4 mu C m^(-6) ,then electric field intensity at point 3.6 cm from axis is :

An infinitely long time charge has linear charge density lamdaC//m the line charge is along the line x=0,z=2m find the electric field at point (1,1,1) m.

Two infinitely long thin styraight wires having uniform linear charge densities lambda and 2lambda are arranged parallel to each other at a distance r apart.The intensity of the electric field at a point midway between them is

A positively charged infinitely long cylinder has a radius of 0.1 m and surface charge density of 8.85xx10^(-12)C//m^(2) . What is the intensity of the electric field at a point on the surface of the cylinder, if the cylinder is kept in vacuum?

Figure shows a long wire having uniform charge density lambda as shown in figure. Calculate electric field intensity at point P.

An equilaterial triangle ABC has a side a. Two infinitely long thin straight wires having uniform linear charge densities ' lamda ' and '-lamda' are arranged at A and B perpendicular to the plante of the triangle. The magnitude of electric intensity at the third vertex c will be

If a long straight wire carries a current of 40 A, then the magnitude of the field B at a point 15 cm away from the wire is

A long wire with a uniform charge density lambda is bent in two configurations shown in fig. Determine the electric field intensity at point O.

An infinitely long wire is kept along z -axis from z= oo to z=oo , having uniform linear cahrges density (10)/(9) nC//m . The electric field at point (6 cm,8cm,10 cm) will be