Can someone please explain this question? (physics)?

Posted on 2016-02-22 19:08:00 in Physics by ENTHAI

Experimenter A uses a test charge q0 and experimenter B uses a test charge 2q0 to measure an electric field produced by stationary charges. A finds a field that is: 

A) the same as the field found by B 
B) greater than the field found by B 
C) less than the field found by B 
D) either greater or less than the field found by B, depending on the masses of the test 
E) either greater or less than the field found by B, depending on the accelerations of the test charges. 

Apparently the answer is A) but can someone please explain? I thought the electric field would depend on the charge?

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