Question

A spring has length L1 and L2 when forces in it are F1 and F2 respectively. The work done needed to increase spring's length from L1 to L2 is​

Answer 1

Explanation:

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. Like charges repel each other and unlike charges attract each other. Wikipedia

In SI base units: C = A s

SI unit: coulomb

Other units: elementary charge; faraday; ampere-hour

Common symbols: q

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