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nirvana33 [79]
3 years ago
15

A transformer has a primary coil with 300 turns and is secondary coil with 600 turns. If the output voltage is 75 voltes, what i

s the input voltage?
Biology
2 answers:
Tcecarenko [31]3 years ago
8 0

<u>Answer:</u>

150 volts

<u>Explanation:</u>

For a transformer which is designed and operated properly, the ratio of primary to secondary coil voltages is proportional to the ratio of primary to secondary coil winding turns.

Here in this case, we have 300 primary coil turns and 600 secondary coil turns which is the double of primary coil turns so the secondary voltage is the double of the primary voltage.

Input voltage = 2 x 75 = 150 volts

nikklg [1K]3 years ago
8 0
As not mentioned ; i assume it is a step up transformer !!

No of turns in primary coil is 300
no of secondary coil is 600

output voltage (secondary voltage) is 75

we know no of coils is directly proportional to Voltage !!

so ;
\frac{300}{600}  =  \frac{x}{75}
x= 75/2 = 37.5 volts !!
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