TPC ELECTRICITY AND MAGNETISM CERTIFICATION EVALUATION VERIFIED QUESTIONS AND SOLUTIONS FULL REVIEW PACK

TPC ELECTRICITY AND MAGNETISM
CERTIFICATION EVALUATION VERIFIED
QUESTIONS AND SOLUTIONS FULL REVIEW
PACK

●● If a gap exists in an electric circuit, the circuit is said to be
Answer: open


●● Atomic particles that have a positive electrical charge are called
Answer: protons


●● Static electricity
Answer: does not move


●● You may find electricity easier to understand if you think of voltage
as electrical
Answer: pressure


●● Identical cells connected in __________ provide greater _________
than a single cell.
Answer: parallel; current capacity

, ●● You must be careful when recharging lead-acid batteries because
they
Answer: can explode
can throw acid around the area
produce flammable gases
"all of the above" ALL IS ANSWER


●● The negative plate in an electrochemical cell is called the
Answer: cathode


●● Which device for producing a potential difference consists of two
different metals welded together?
Answer: Thermocouple


●● An optoisolator receives a low-voltage signal on the LED side of the
device and triggers a device that
produces a ___________ voltage on the output side.
Answer: higher


●● The purpose of a potentiometer is to
Answer: divide a potential difference into two parts


●● Power is measured in