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Q. 5

Expert-verified
Found in: Page 653

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics

Book edition 4th
Author(s) Randall D. Knight
Pages 1240 pages
ISBN 9780133942651

An electric dipole is formed from two charges, , spaced apart. The dipole is at the origin, oriented along the y-axis. The electric field strength at the point is . a. What is the charge q? Give your answer in . b. What is the electric field strength at the point ?

(a) The charge q is .

(b) The electric field strength is

See the step by step solution

Coordinates

Step 2: Explanation (part a)

The electric field due to a dipole is given by

Where P=dipole moment and r= distance of dipole to point of electric field=10cm=0.10m. E=electric field strength at (0,10)=360N/C.

So,

Step 4: Explanation (part b)

The electric field at the perpendicular axis :