Answer:
b . is zero.
Explanation:
An Equipotential surface is the one that has electric potential same throughout the surface. The formula for work done in an electric field is given by
dW= qdV
Now, in an Equipotential surface dV= 0.
Hence the work done in moving a charge from one place to the other in an electric field is zero.
You take the mass number and subtract the number of neutrons
Answer:
The type of image formed on a screen by a convex lens is real, enlarged and inverted.
Explanation:
A lens can be defined as a transparent optical instrument that refracts rays of light to produce a real image.
Basically, there are two (2) main types of lens and these includes;
I. Diverging (concave) lens.
II. Converging (convex) lens.
A converging lens refers to a type of lens that typically causes parallel rays of light with respect to its principal axis to come to a focus (converge) and form a real image.
Basically, the type of image formed on a screen by a converging (convex) lens is real, enlarged and inverted because it is usually thick across the middle (causing rays of light to converge) but thin at the lower and upper edges.
C
The atomic mass is the sum of the number of neutrons and protons.
