Physics: Sharon is clicking a picture of her grandmother who is standing 5.4 m in front of a camera, which has a converging lens with a focal length of 0.075 m. The distance of the image from the lens is 0.087 m 0.076 m 0.074 m 0.065 m 0.053 m

Sharon is clicking a picture of her grandmother

haileysolis5

06.12.2022

$6.60\cdot 10^5 Nm^2/C$

Explanation:

The electric flux through the rectangle is given by

$\Phi = E A cos \theta$

where

E is the electric field strength

A is the area of the rectange

$\theta$ is the angle between the direction of the electric field and of the vector normal to the plane of the rectangle

In this problem we have

E = 125 000 N/C

The area of the rectangle is

$A=2.50 m \cdot 5.00 m=12.5 m^2$

and the angle is

$\theta=65.0^{\circ}$

so, the electric flux is

$\Phi = (125,000 N/C)(12.5 m^2)(cos 65^{\circ})=6.60\cdot 10^5 Nm^2/C$

0,0(0 оценок)