Question

Electric current can be measured. it is a rate. what does this mean?

A. How bright a light will burn when plugged in.
B. The strength of power used by something plugged into a wall.
C. The amount of charge that passes a certain point in a certain amount of time.
D. The amount of energy available that could be used.

Answer 1

C

Explanation:

Answer 2

C. The amount of charge that passes a certain point in a certain amount of time.

Explanation:

Electric current is the rate of flow of charge between two ends.

Let Q be the charge measured in coulombs and time T measured in seconds,

Then Q is directly proportional to T

Q α T

Q = IT

where I is the constant of proportionality

I = Q/T (the rate of flow of charge)

I is electric current measured in Amperes.

The right option is C. The amount of charge that passes a certain point in a certain amount of time.