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The Impedance value of an AC circuit is the sum of which of the following values?
Resistance, inductive reactance and capacitive reactance
When measuring the resistance value of a circuit or circuit components, the circuit must be
The instrument used to measure the insulkation resistance of a circuit or circuit components, is a
Before using an electrical measuring instrument to measure electrical quantities of a circuit
the operation must be verified on a known live source
Four common waveforms used to graphically display an electrical supply are
DC, Sine, Square, Triangle
Current is caused to flow in the secondary winding of a transformer due to what electrical principle?
The magnetic field developed in the primary winding of a transformer cuts across the secondary winding causing
a current to flow in the secondary winding
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