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Definition of "Loading Effect" |
Connection of a meter (an ammeter in series or a voltmeter in shunt) to a circuit to make a measurement alters the original circuit in that it draws some energy from the circuit. The error caused is known as the loading effect. / The effect of a load on a transmitting interface. The effect of connecting one device to another. The effect of a voltmeter upon the circuit being measured that results in an inaccurate measurement. Loading effect is minimized by using a voltmeter with an internal resistance many times higher than the resistance of the circuit being measured. Obsolete reference, as a digital voltmeter has Meg Ohms of input resistance. / Connection of a meter to a circuit to make a measurement alters the original circuit in that it draws some energy from the circuit. The error caused is known as the loading effect. / large load impedance will draw a small load current and so loading of the source is small. (Light load). A small load impedance will draw a large load current from the source. (Heavy load). |
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