1. What is electric charge? What are the units of electric charge? What is electric current? What are the units of electric current?
Questions 2, 3, and 4 refer to the following circuit:
2. What is the current through R1?
PHYS 230 1.
PRACTICE EXAM What is the output power from the following amplifier?
What is the input voltage to the following amplifier?
List three transducers that convert different types of signals to electrical signals.
PHYS 230 4.
1. Describe a communication system that employs all three multiplexing schemes.
2. What is the name of the process which allows us to recover the baseband signal from the modulated carrier?
3. Draw three figures (baseband