plz explain the underlined step
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The question is asking us to find the maximum electrostatic force possible
Now, from calculus we know that to find out the Maxima and minima we've to differentiate the term or the quantity with respect to the Independent variable In the equation.
So,
here since 'q' that is the charge can be varied !
We've to find a condition so that force is maximum,
And thus we'll have to differentiate force term with respect to q
That's what has been written there !!
Hope this helps you !
^_^
Now, from calculus we know that to find out the Maxima and minima we've to differentiate the term or the quantity with respect to the Independent variable In the equation.
So,
here since 'q' that is the charge can be varied !
We've to find a condition so that force is maximum,
And thus we'll have to differentiate force term with respect to q
That's what has been written there !!
Hope this helps you !
^_^
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Explanation:
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