For the net charge to be +3,the mystery charge should be is -2 and net force is towards left.
- In first problem, overall charge should be -2 (as mentioned in question).
- So charge labelled with ? should be negative charge ( -ve).
- There will be net force on -1 charge towards +3 charge (left). For box (b)net force towards right
- For box c) net force towards right.
- It is often referred to as electric charge, electrical charge, or electrostatic charge, and denoted by the letter q, is a property of a unit of matter that indicates how many more or less electrons than protons it has.
- When retained in an electric or magnetic field, matter's basic physical feature known as electric charge causes it to experience a force.
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