Question

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Answer 1

Answer:

Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. There are two types of electric charge: positive and negative (commonly carried by protons and electrons respectively). Like charges repel each other and unlike charges attract each other.

Answer 2

Answer:

Hey there ans in attachment

Step-by-step explanation:

r is in denominator when it is taken to other side of equal to sign it will multiply with r it become 2r