Question

For a particular transformer, the voltage E in the circuits is related to the number of windings W of wire around the core by the equation E = 40W. How many windings will produce a voltage of 760 V?

Answer 1

`19\text{ windings}`

Step-by-step explanation

The voltage, E, is related to the number of windings, W, by the equation:

`E=40W`

To find the number of windings that will produce 760 V, we have to solve for W when E is 760 V. That is:

`\begin{gathered} 760=40W \\ \Rightarrow W=(760)/(40) \\ W=19\text{ windings} \end{gathered}`

That is the answer.