Answer:
The darts hit very different areas of the board.
Explanation:
Answer:
The electric field outside the sphere will be
.
Explanation:
Given that,
Radius of solid sphere = R
Charge = q
According to figure,
Suppose r is the distance between the point P and center of sphere.
If
be the volume charge density,
Then, the charge will be,
.....(I)
Consider a Gaussian surface of radius r.
We need to calculate the electric field outside the sphere
Using formula of electric field


Put the value from equation (I)


Hence, The electric field outside the sphere will be
.
they travel the speed of light or 300,000 km per second
The correct answer would be c