Correct Answer - Option 4 : All of the above
The correct answer is option 4) i.e. All of the above
CONCEPT:
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Electric charge is a fundamental property of matter that causes the matter to experience a force when kept in electric and magnetic fields.
- There are two types of charges possessed by matter - negative charge and positive charge.
- The SI unit of electric charge is coulomb (C).
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Electric current is defined as the charge flowing per unit time.
It is given by:
\(I = \frac{q}{t}\)
Where I is current, q is the charge and t is the time.
EXPLANATION:
- The SI unit of electric charge is the coulomb.
Electric charge, q = Current (I) × time (t).
- The SI unit of current is ampere and that of time is second. Hence, ampere-second also denotes the electric charge.
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Capacitance is the ability of a capacitor to store electrical charge in it.
The capacitance (C) is related to the electrical charge Q and voltage V across them as:
\(C =\frac{Q}{V}\)
Therefore, Electrical charge (Q) = CV.
- The SI unit of capacitance is faraday and that of voltage is volt. Thus, faraday-volt is also a unit of electrical charge.
- Thus, the given all options are units of electrical charge.
