A charged belt, 61 cm wide, travels at 43 m/s between a source of charge and a sphere. The belt carries charge into the sphere at a rate corresponding to 100 µA. Compute the surface charge density on the belt.

Surface charge density will be

Explanation:

We have given speed of the belt v = 43 m/sec

Width of the belt w = 61 cm

We know that charge is equal to Q = It, here Is current and t is time

And time is equal to , here L is distance and v is speed

Putting the value of t in charge equation

Surface charge density is equal to

We know that width is equal to

So

not moving. pos accel,

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it