Question

Coulomb is equal to:
A.Ampere $\times $ second
B.Ampere$\times $minute
C.Watt$\times $second
D.Volt $\times $second

Answer 1

Hint: To answer this question, we should know that coulomb (symbolized C) is the standard unit of electric charge in the International System of Units (SI). In terms of SI base units.

Step by step answer:
We should first know about electric charge. We should know that electric charge is a fundamental property of matter. We know that electrons carry a charge of negative one electron unit, and protons a charge of positive one electron unit. We should know that the SI unit for electric charge is the Coulomb.
We should know that about \[6.24\times {{10}^{18}}\]electrons add up to one coulomb. As per the SI system, we should know that one Coulomb of charge is equal to the charge transported by an electric current of constant magnitude in one second of time. It is also equal to the amount of excess charge that arises in a capacitor of one farad when it is charged to a potential difference of one volt.
We should know that the Coulomb unit is the amount of electric charge (symbol: Q or q) transported by a constant electric current of one ampere in one second.
\[1\,Coulomb=1\,ampere\times 1\,\sec ond\]
So, from the above discussion we can say that coulomb is equal to the amount of electric charge transported by a constant electric current of one ampere in one second. So, from this discussion we can say that option A is correct.

Note: We should know that ampere is the base unit of electric current in the International System of Units (SI). We should know that an ampere is equivalent to a charge of one coulomb per second. Ampere or ‘amp’ is a unit of electric current denoted by A. We should know that the rate of electron flow in an electrical conductor is measured in Ampere. One ampere of current represents one coulomb of electrical charge, that is \[6.24\times {{10}^{18}}\] charge carriers, moving in one second.