TPC Basic Electricity & Electronics - Questions With
Correct Solutions
All modern electrical equipment is based on an understanding of the
relationship between _________
and _________. Right Ans - electricity; magnetism
If a gap exists in an electric circuit, the circuit is said to be Right Ans - open
Atomic particles that have a positive electrical charge are called Right Ans -
protons
Static electricity Right Ans - does not move
You may find electricity easier to understand if you think of voltage as
electrical Right Ans - pressure
Identical cells connected in __________ provide greater _________ than a single cell.
Right Ans - parallel; current capacity
You must be careful when recharging lead-acid batteries because they
Right Ans - 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 Right Ans -
cathode
Which device for producing a potential difference consists of two different
metals welded together? Right Ans - 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. Right Ans - higher
The purpose of a potentiometer is to Right Ans - divide a potential
difference into two parts
