Electrostatics 3 Question 18

18. An infinitely long uniform line charge distribution of charge per unit length λ lies parallel to the y-axis in the y - z plane at z=32a (see figure). If the magnitude of the flux of the electric field through the rectangular surface ABCD lying in the xy plane with its centre at the origin is

Analytical & Descriptive Questions

Show Answer

Solution:

  1. ANBP is cross-section of a cylinder of length L. The line charge passes through the centre O and perpendicular to paper.

AM=a2,MO=3a2AOM=tan1AMOM=tan113=30

Electric flux passing from the whole cylinder

φ=qinε0=λLε0

Electric flux passing through ABCD plane surface (shown only AB)= Electric flux passing through cylindrical surface ANB

=60360(φ)=λL6ε0n=6



जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक