The \[\frac{e}{m}\] ratio of an electron for all types of substances i

1.	The \[\frac{e}{m}\] ratio of an electron for all types of substances is
A.	constant
B.	less than one
C.	greater than one
D.	zero
Answer» B. less than one

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The \[\frac{e}{m}\] ratio of an electron for all types of substances is

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