The substances whose resistivity lies between those of conductors and insulators are called ................ .
Semi conductors
Substances which have free electrons and offers high resistance are called as insulators.
The substance having infinitely high electrical resistance is called: (a) conductor (b) resistor (c) superconductor (d) insulator
Differentiate between:
(1) Resistances in series and parallel.
(2) Conductors and insulators.
(3) Resistance and resistivity.
(4) High resistance and low resistance.