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in Ohm's law V=IR here V is independent variable and I is dependent variable (i,e increasing V, I also increases) herewe place R (proportionality constant) with I (dependent variable).

On the other hand..

in electrostatic force F=k(Qq/r^2 ) hereK is constant of proportionality that is written with independent quantity.

Here is also an example:

Q=CV (Q is independent and V is dependent variable) here C (capacitance) is placed with V (dependent variable)

Here is....

R=pL/A (rho is placed with independent quantity)

Please tell me the actual fact of constant of proportionality.

Thank you

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# What is the fact of constant of proportionality?

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