Voltage, Energy, and Power Practice Test

A current flows through a wire with a resistance of . Find the power generated by this current.

During the cold winter months, some gloves have the ability to provide extra warmth due to an internal heating source. A simplified circuit, similar to those in electric gloves, is comprised of a 9V battery with no internal resistance and three resistors as shown in the image below.

What is the voltage drop across RA?