Electronic Principles
A device that converts thermal energy to electrical energy is called a:

solar cell
piezoelectric devices
chemical cell
thermocouple
None of these

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
What is a free electron?

An electron that costs nothing
None of these
An electron that has no electrical charge
An electron that has been freed from its parent atom
An electron that has twice the amount of charge of a normal electron

ANSWER DOWNLOAD EXAMIANS APP