Question

What is the voltage output (in V) of a transformer used for rechargeable flashlight batteries, if its primary has 475 turns, its secondary 8 turns, and the input voltage is 114 V

Answer 1

Output voltage is 1.92 volts.

Step-by-step explanation:

Given that,

Number of turns in primary coil,
`N_p=475`

Number of turns in secondary coil,
`N_s=8`

Input voltage,
`V_i=114\ V`

We need to find the voltage output of a transformer used for rechargeable flashlight batteries. For a transformer, the number of turns and the voltage ratio is given by :

`(N_p)/(N_s)=(V_i)/(V_o)\\\\\\V_o=114\cdot(8)/(475)\\\\V_o=1.92\ V`

So, the output voltage is 1.92 volts.