Answer:
Number of turns in secondary will be 7
Explanation:
We have given primary voltage 
Number of turns in the primary is 
Secondary voltage is given 
We have to find the number of turns in secondary
We know that 
So 
As the number of turns can not be in decimal so number of turns will be 7
Answer:
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<span>With a power supply able to produce 125 an of current, then the time on how long must the nails stay in the electrolysis chamber to receive 1.33×107 c of charge is 10 hours, then a minute of 29, and lastly, 20 more seconds. </span>
Both F's are forces, so µ must be unitless/dimensionless.
F[friction] = µ F[normal]
Or, more explicitly in terms of the units:
(Newtons) = (constant) (Newtons)
