Tag: Basic electric circuits
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Alternating Currents and Voltages
Alternating current generator Let’s consider a signal turn coil rotating freely at a constant angular velocity symmetrically between the poles of a magnet as illustrated below: Figure 1(a) Simple single-loop ac generator The ends of the loop are terminated in … Read more
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AC Circuits with Resistors, Inductors and Capacitors
Purely Resistive Circuits In resistive elements the current and voltage are in phase. Figure 1(a) purely resistive circuit Figure 1(b) waveform of a purely resistive circuit (current in phase with voltage) Figure 1(c) phasor diagram resistive circuit Purely Capacitive Circuits… Read more
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Key Facts about Resistors, Resistor Colour Codes and Resistor Tolerance
Resistors perform two basic functions in electronics: To limit current flow To set voltage levels within a circuit These two Resistor features of current limiting and voltage setting are implemented in various ways in electronics as listed below: Resistors are … Read more
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Series and Parallel Circuits
Series Circuits The figure below shows three resistors R1, R2, and R3 connected end to end i.e. in series with a battery source of V volts. A series circuit Since the circuit is closed, a … Read more