In defining electric field due toa point charge, the test charge, the test charge has to be vanishinglysmall. How this conditioncan be justified, when we knowthat chargeless than of electronor a protonis not possible.

In defining electric field due toa point charge, the test charge, the

1.	In defining electric field due toa point charge, the test charge, the test charge has to be vanishinglysmall. How this conditioncan be justified, when we knowthat chargeless than of electronor a protonis not possible.
Answer» SOLUTION :This is TRUE that CHARGELESS than electronor protonis not possiblebut in macrosopic SITUATIONS,sourcecharge is muchlarger than charge onelectron or proton, so the limit `q_(0) rarr 0` for the test charge is JUSTIFIED.

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In defining electric field due toa point charge, the test charge, the test charge has to be vanishinglysmall. How this conditioncan be justified, when we knowthat chargeless than of electronor a protonis not possible.

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