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ASHA 777 [7]
3 years ago
6

A plug-in transformer supplies 9 V to a video game system. (a) How many turns are in its secondary coil, if its input voltage

is 111 V and the primary coil has 340 turns? g
Physics
2 answers:
nikitadnepr [17]3 years ago
8 0

28 turns

Explanation:

The transformer equation given as

\frac{V_{s} }{V_{p} } =\frac{N_{s} }{N_{p} }

Here,{N_{s} }, {N_{p} } are the number of loops in the primary and secondary coil respectively and {V_{s} },{V_{p} }  are the output and input voltages.

Substitute the given values, we get

\frac{9.00V}{111.00V} =\frac{N_{s} }{340}

N_{s} =\frac{9\times340 }{111}

N_{s}=27.57 =28

Thus, the turns in secondary coil are 28.  

zloy xaker [14]3 years ago
6 0

Answer:

The number of turns in the secondary coil is 28.

Explanation:

Given that,

Input voltage given to the transformer, V_p=111\ V

Output voltage supplied to the video game, V_s=9\ V

Number of turns in the primary coil, N_p=340

We need to find the number of turns in its secondary coil. We know that the transformer equation is given by :

\dfrac{V_s}{V_p}=\dfrac{N_s}{N_p}\\\\N_s=\dfrac{V_s}{V_p}\times N_p\\\\N_s=\dfrac{9}{111}\times 340\\\\N_s=27.56

or

N_s=28

So, the number of turns in the secondary coil is 28.

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