End Of Year Exam Flashcards
1
Q
What is an NTC resistor?
A
An NTC resistor is a thermistor for which resistance drops as temperature rises.
2
Q
What is emf?
A
It is defined as the energy transferred from chemical/another form to electrical energy per unit charge. (e.m.f= energy transferred/charge)
3
Q
What is the formula for work done on an electron in an electron gun?
A
Work done on an electron= final kinetic energy of an electron
V x e =1/2 mv^2 ( V being the p.d)
4
Q
What are the Si units of a volt.
A
kgm^2s^-3a^-1
5
Q
A
