Question

The total charge on 4 particles is −36 units. All the particles have the same charge.

What is the charge on each particle?

−9 units
−8 units
8 units
9 units

Answer 1

Charge on each particle is -9 units.

Explanation:

We know that,

number of particles = 4; and

the total charge of particles = -36

Since, all the four particles have an equal charge, we can simply divide the total charge by 4 to find the charge on each particles.

Charge on each particle =
`-(36)/(4)` =
`-9` units

Also, the charge on each particle must be negative since the total charge given is '-36'.

Answer 2

We are given

total number of particles =4

and

total sum of charge=-36

Since, all the particles have the same charge

and total charge is negative

so, charge on each particle must be negative

now, we can use formula to find change on each particle

charge on each particle = (total sum of charge)/( total number of particles)

now, we can plug values

and we get

The charge on each particle is

`=(-36)/(4)`

`=-9` units..............Answer