Mention the types of methods of charging a body.

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(N/A) body can be charged in three main ways:
$(1)$ Charging by friction: When two neutral bodies are rubbed against each other,electrons are transferred from one body to another,resulting in equal and opposite charges.
$(2)$ Charging by conduction: When a charged body is brought into physical contact with an uncharged body,charge is transferred from the charged body to the uncharged body.
$(3)$ Charging by induction: When a charged body is brought near an uncharged body without making physical contact,the charges in the uncharged body are redistributed,and it becomes charged.

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Assertion $(A)$: Electromagnetic force is enormously strong as compared to gravitational force. Yet,gravity dominates in large-scale phenomena (e.g.,formation of galaxies).
Reason $(R)$: Existence of positive and negative charges makes matter mostly electrically neutral.
Which of the following is true?

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