Electronic Principles The rotating coil of wire in an electric motor is called the: None of these brush commutator loop armature None of these brush commutator loop armature ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A real voltage source has A small internal resistance A large internal resistance Zero internal resistance None of these Infinite internal resistance A small internal resistance A large internal resistance Zero internal resistance None of these Infinite internal resistance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A circuit has two different voltage sources that are connected in a series-aiding form. If the sources are rated at 6 V and 9 V, what is the total source voltage? 16 V 15 V 7.5 V 8 V None of these 16 V 15 V 7.5 V 8 V None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The number of free electrons and holes in intrinsic semiconductor increases when the temperature Stays the same Increases 0oC Decreases None of these Stays the same Increases 0oC Decreases None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? None of these 0.2 A 0.6 A 0.4 A 0.3 A None of these 0.2 A 0.6 A 0.4 A 0.3 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit? There is no valid comparison Retentivity Permeance Permeability Reluctance There is no valid comparison Retentivity Permeance Permeability Reluctance ANSWER DOWNLOAD EXAMIANS APP
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