GENERAL KNOWLEDGE

GK

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the unit used to express the magnitude of an object’s ability to store electric charge?
A
Newton
B
Watts
C
Volts
D
Farad
Explanation: 

Detailed explanation-1: -A farad (F) is the standard unit of capacitance (C) in the International System of Units (SI). It indicates the ability of a substance to hold an electric charge. The value of most electrical capacitors is expressed in farads, microfarads (µF) or nanofarads (nF).

Detailed explanation-2: -The charge possessed by an object is often expressed using the scientific unit known as the Coulomb. Just as mass is measured in grams or kilograms, charge is measured in units of Coulombs (abbreviated C).

Detailed explanation-3: -The farad (symbol: F) is the unit of electrical capacitance, the ability of a body to store an electrical charge, in the International System of Units (SI), equivalent to 1 coulomb per volt (C/V). It is named after the English physicist Michael Faraday (1791–1867). In SI base units 1 F = 1 kg−1⋅m−2⋅s4⋅A2.

Detailed explanation-4: -The amount of capacitance of a capacitor is measured in farads. If a capacitor can store 1 coulomb of electrons on its plates when it is charged by 1 volt, it is said to be 1 farad capacitor.

Detailed explanation-5: -The unit of capacitance is the Farad (F) and a 1F capacitor charged to 1V will hold one Coulomb of charge.

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