A circuit component, with a specified electrical resistance, which is designed to reduce current. A resistor produces a voltage drop between its terminals in accordance with Ohm's law.
Resistors for electronic circuits are generally made from finely ground particles of carbon mixed with a ceramic material and enclosed in an insulated tube. The value of the resistance is given by a coded set of colored rings on the outside of the tube. resistors for carrying larger currents consist of coils of insulated wire.
Related categories ELECTRICITY AND MAGNETISM
ELECTRONICS AND SEMICONDUCTORS
Home • About • Copyright © The Worlds of David Darling • Encyclopedia of Alternative Energy • Contact