Question

Which of the following statement is correct? The electric field at a point is [NCERT Exemplar]
(a) always continuous.
(b) continuous if there is a charge at that point.
(c) discontinuous only if there is a negative charge at that point.
(d) discontinuous if there is a charge at that point.

Answer 1

The electric field at a point is continuous if there is a charge at that point.

Explanation:

An electric field will be continuous because of any charge, if in the medium there is no other charge available. If there is a particular charge at a point under the consideration then, it will be discontinuous.

Hence, the correct option is (b).

Electric field refers to the per unit charge of electric force. The electric field is radiating toward the negative point charges and radiating outward from positive charges. Electric field is made of electric charges.

For example: Light, radio waves, X- rays, microwaves,etc. They carry electric field component's inside them.

For more:

Define electric field at a point. Give its unit and obtain an expression for the electric field at a point due to a point charge.

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Define the continuous distribution of charges explain F force that acts on test charge due to linear surface and volume distribution​

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Answer 2

Answer:

Explanation:

B