Which of the following statements does not use the term light-year in an appropriate way? a) it's about 4 light-years from here to alpha centauri.b) it will take me light-years to complete this homework assignment.c) a light-year is about 10 trillion kilometers.d) it will take the voyager spacecraft about 20,000 years to travel just 1 light-year. e) the milky way galaxy is about 100,000 light-years in diameter.

Light year is the distance traveled by light in 1 year of time interval

so here we can say that the statement must have used the word light year as the distance

so we have

A) It's about 4 light-years from here to Alpha Century.

this shows the distance between two so it is correct

B) It will take me light-years to complete this homework assignment.

here it represent the light year as time so it is INCORRECT

C) A light-year is about 10 trillion kilometers.

This shows the distance so it is correct

D) It will take the Voyager spacecraft about 20,000 years to travel just 1 light-year.

It shows the distance so it is correct

E) The Milky Way Galaxy is about 100,000 light-years in diameter.

this is distance so it is also correct

213 nA

2.13 mA

851e^-t μA

Explanation:

We have a pretty straightforward question here.

Ohms Law states that the current in an electric circuit is directly proportional to the voltage and inversely proportional to the resistance in the circuit. It is mathematically written as

V = IR, since we need I, we can write that

I = V/R

a) at V = 1 mV

I = (1 * 10^-3) / 4.7 * 10^3

I = 2.13 * 10^-7 A or 213 nA

b) at V = 10 V

I = 10 / 4.7 * 10^3

I = 0.00213 A or 2.13 mA

c) at V = 4e^-t

I = 4e^-t / 4.7 * 10^3

I = 0.000851e^-t A or 851e^-t μA