A : An electron has negative charge by definition
R : Charge of a body depends on its velocity.

A body can be negatively charged by

A body can be negatively charged by

A body is negatively charged means

STATEMENT-1 : Charge cannot exist without matter. STATEMENT-2 : Charge of body depends on its velocity. STATEMENT -3 : The charge cannot exert force on itself.

When a body is negatively charged by friction, it means

When a slide body is negatively charged by friction, it means that the body has