1.

Potential at a point A is 3 volt and at a point B is 7 volt, an electron is moving towards A from B.

Answer»

It must have some K.E at B to REACH A
It NEED not have any K.E at B to reach A
to reach A it must have more than or equal to 4 eV K.E at B.
when it will reach A, it will have K.E. more than or at least equal to 4 eV if it was relased from REST at B.

Answer :A::C


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