Q. 2

Expert-verifiedFound in: Page 629

Book edition
4th

Author(s)
Randall D. Knight

Pages
1240 pages

ISBN
9780133942651

What are the strength and direction of the electric field at the position indicated by the dot in FIGURE EX23.2? Specify the direction as an angle above or below horizontal.

The strength of the electric field at P

The direction of the net electric field at P is above the horizontal.

Two positive charges of magnitude are separated by a distance of . The dot is at a perpendicular distance of from charge .

We have to find the net electric field at the point P. Let be the angle between AP and PB.

From the figure,

Electric field at P due to the charge at A is given by,

The direction of is along the horizontal.

The direction of is along with BP.

From the figure,

So, the net electric field at P has both parallel and perpendicular components.

Therefore, the components of the net electric field at P is given by,

So, the net electric field at P is given by,

The directive of the net electric field at P is given by,

Since

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