Question
Download Solution PDFWhich of the following laws deduces the expression for the force between two stationary point charges in vacuum or free space?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Coulomb’s Law.
Key Points
- Coulomb’s Law talks about the magnitude of the attraction between the two charges.
- It says that the force is directly proportional to the product of the quantity of the two charges.
- F ∝ q1q2, where (F is Force, q1 and q2 are charges).
- It is also inversely proportional to the square of the distance between them.
- i.e., F ∝ 1/r2 where (F is Force, r is the distance between the charges).
- Thus, the equation is
where k is the proportionality constant and is equal to 9 × 109 Nm2/C2. - The Law was given by Charles-Augustin de Coulomb in the year 1784.
Additional Information
- Lenz's law states that the direction of the induced current in the coil will be always in such a way that it opposes the change which produces the current.
- According to Gauss law, the total electric flux linked with a closed surface called Gaussian surface is
the charge enclosed by the closed surface. - Ohm’s law states that at a constant temperature, the current through a conductor between two points is directly proportional to the voltage across the two points.
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