Question

Charges of 5uC and 10uC are separated by a certain distance. Which charge repels the other with a greater force?​

Answer 1

Answer:

Explanation:

Let the force Initially the force between them is will be (k*5*10)*10^-12/r^2=F1

when -4uC is added to both then the force between them will be 5–1=1; 10–4=6; the force between them will be (k*1*6)*10^-12/r^2=F2

now divide both equations ie, F1/F2= 5*10/6= {F1=25/3F2}

Answer 2

$\huge\red{\underline{{\boxed{\textbf{QUESTION}}}}}$

Charges of 5uC and 10uC are separated by a certain distance. Which charge repels the other with a greater force?

Define SI unit of charge.

$\huge\red{\underline{{\boxed{\textbf{ANSWER}}}}}$

5uC repels the other charge with greater force because it is greater than 10 uC

________________

SI unit of charge is Coulomb.

Q = 1 C

we know, Q = ne

n = Q/e

=> n = 1/(1.6 *10^-19 ) = 6.25 *10^18.

So,

One coulomb of charge refers to the flow of 6.25* 10^18 electrons from one body to another.

@HarshPratapSingh