A Transformer Is a Device Used to

question 1

Multiple Choice

A transformer is a device used to

• A)transform an alternating current into a direct current.
• B)transform a direct current into an alternating current.
• C)increase or decrease an ac voltage.
• D)increase or decrease a dc voltage.

---

Definitions:

Profitability Index

A calculation used to assess the relative profitability of an investment, computed as the present value of future cash flows divided by the initial investment cost.

Present Value

The current value of a future sum of money or stream of cash flows, discounted at a specific interest rate.

Annuity

A financial product that pays out a fixed stream of payments to an individual, typically used as an income stream for retirees.

Interest Rate

The percentage charged by a lender to a borrower for the use of assets, typically expressed as an annual percentage of the principal.