Q.

What is the specific charge(e/m) of an electron? 

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a

0.472 × 108 coulombs/kg 

b

17.6 × 1010 coulombs/kg 

c

17.6 × 108 coulombs/kg 

d

0.96 × 108 coulombs/kg 

answer is A.

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Detailed Solution

Question Image

.Specific Charge is defined as e/m 

For electron, 

e=1.6×10−19C

m=9.1×10−31Kg
 

So, e/me = 1.76×1011

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