Considering a group of positive charges, which of the following statements is correct ?
Considering a group of positive charges, which of the following statements is correct ?
Show Hint
- Net potential of the system cannot be zero at a point but net electric field can be zero at that point.
- Net potential of the system at a point can be zero but net electric field can't be zero at that point.
- Both the net potential and the net electric field cannot be zero at a point.
- Both the net potential and the net field can be zero at a point.
The Correct Option is A
Approach Solution - 1
\(V=\frac{\sum KQ_i}{r_i}\)
Here , \(Q_i\) and \(r_i\) are positive
Therefore V > 0
So , the correct option is (A) : Net potential of the system cannot be zero at a point but net electric field can be zero at that point.
Approach Solution -2
The electric field is the gradient of the potential, meaning it can be zero even when the potential is not zero.
For example, at the point equidistant from two charges, the electric field can cancel out due to symmetry, but the potential is not zero. Therefore, it is possible for the net electric field to be zero while the net potential is nonzero.
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Concepts Used:
Electric Charge
What is Electric Charge
It is the property of subatomic particles that experiences a force when put in an electric and magnetic field. It is are of two types: Positive and Negative. It commonly carried by charge carriers protons and electrons.
Properties of Electric Charge
Various properties of charge include the following :-
- Additivity of Electric Charge
- Conservation of Electric Charge
- Quantization of Electric Charge
Types of electric charge
Two kinds of electric charges are there :-
Negative Charge - When an object has a negative charge it means that it has more electrons than protons.
Positive Charge - When an object has a positive charge it means that it has more protons than electrons.
When there is an identical number of positive and negative charges, the negative and positive charges would cancel out each other and the object would become neutral.