If charge is distributed along the entire length of a very thin uniformly charged wire, which type of charge density is used to describe it?
Answer and explanation
Correct answer: Linear charge density
The correct choice follows from the geometric dimension over which the charge is distributed. A very thin wire is treated as a one-dimensional object, so charge is described per unit length by linear charge density, lambda = dQ/dl or Q/L for uniform distribution. Surface density is used for sheets, volume density for three-dimensional bodies, and a point charge is localized at one position. Therefore option A is correct.
Frequently asked questions
What is the correct answer to this question?
Linear charge density
Why is this the correct answer?
The correct choice follows from the geometric dimension over which the charge is distributed. A very thin wire is treated as a one-dimensional object, so charge is described per unit length by linear charge density, lambda = dQ/dl or Q/L for uniform distribution. Surface density is used for sheets, volume density for three-dimensional bodies, and a point charge is localized at one position. Therefore option A is correct.
Which subject and chapter does this question cover?
This is a Class 12 Physics question. Chapter: Chapter1: Electric Charges and Fields. Topic: Continuous Charge Distribution.
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