静电场中某点P处电势的数值等于___ The value of the potential at some point P in the electro
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静电场中某点P处电势的数值等于___ The value of the potential at some point P in the electrostatic field is equal to___
A.试验电荷q0置于P点时具有的电势能； the potential energy of the test charge q0 at point P;
B.单位试验电荷置于P点时具有的电势能； the electric potential energy of the unit test charge at point P;
C.单位正电荷置于P点时具有的电势能； the electric potential energy of a unit positive charge at point P;
D.把单位正电荷从P点移到电势零点时外力所作的功； the work done by the external force when the unit positive charge is moved from P to zero of the electric potential;
回答
共1条回复-
把单位正电荷从该点移到电势零点处电场力所做的功;单位正电荷置于该点时具有的电势能．