Period = (1) / (frequency)
= (1) / (20/sec)
= 1/20 sec
Answer:
The value of charge is 35.3 C
Explanation:
Given:
Force
N
Electric field 
According coulomb's law,

Where
charge that experience a force,
For finding the value of charge,


C
Therefore, the value of charge is 35.3 C
Answer:
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