Question

Which of the following units is used to express electrical charge? Question 2 options: Newton Coulomb Joule

Answer 1

Answer: Coulomb

Step-by-step explanation:

`Q=I* t`

where Q= quantity of electricity

I = current in amperes

t= time in seconds

Thus charge is in coulomb. 1 coloumb of charge appears whe 1 ampere current is passed for 1 second.

Newton is the unit of force.

`1kgms^(-2)=1Newton(N)`

Joule is the unit of energy.

`1kgm^2s^(-2)=1 Joule`

Answer 2

The coulomb whose symbol is (C), is used to express charge. It is the SI unit of electric charge.

1 C is equivalent to charge carried by 6.24×10¹⁸ electrons. Although electrons are negatively charged, the Coulomb expresses both positive and negative charges.