Introduction Three basic components, resistors, capacitors, and inductors, are very important elements in electrical circuits as individual devices, or together. Resistors are used as loads, delays, and current limiting devices. Capacitors are used as dc blocking devices, in level shifting, integrating, differentiating, frequency determination, selection, and delay circuits. Inductors are used for frequency selection and ac blocking, in analog meter movements and relays, and are the basis for transformers and motors.
This blog will help to refresh and expand your understanding of basic electrical components and the basic terms used in electricity as required for instrumentation.
This chapter discusses
■ Basic passive components (resistors, capacitors, and inductors) used in electrical circuits
■ Applications of Ohm’s law and Kirchoff’s laws
■ Use of resistors as voltage dividers
■ Effective equivalent circuits for basic devices connected in series and parallel
■ The Wheatstone bridge