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

The number of turns in the secondary coil is 28.

Explanation:

Given that,

Input voltage given to the transformer,

Output voltage supplied to the video game,

Number of turns in the primary coil,

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

or

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

= initial pressure

= final pressure = 2

= initial volume

= final volume = /4

= initial temperature = 20 c = 20 + 273 = 293 k

= final temperature = ?

using the equation