Electronic Principles What is the algebraic sum of this series of values:+2, -3, -6,+4? None of these -3 2 -6 None of these -3 2 -6 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: frequent changes in the direction of current through the coil causes heating effects in the core material changing the polarity of the current in the coil changes the polarity of the magnetic field around the core the core is permitted to move freely within the coil None of these an increase in current through the coil causes no further increase in the mmf frequent changes in the direction of current through the coil causes heating effects in the core material changing the polarity of the current in the coil changes the polarity of the magnetic field around the core the core is permitted to move freely within the coil None of these an increase in current through the coil causes no further increase in the mmf ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage? 24 V None of these 12 V 18 V 30 V 24 V None of these 12 V 18 V 30 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much power is being dissipated by a 1000 W resistance that has 25 V applied to it? 325 kW 0.24 W 80 W 0.625 W None of these 325 kW 0.24 W 80 W 0.625 W None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The component that forms the electrical connection between the rotating coil of wire in a motor and the external source of electrical energy is called the: armature battery commutator rotor None of these armature battery commutator rotor None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the total resistance of a series circuit that contains four resistors having values of 220W, 470W, 1W, and 1.2W? 692.2 Ohm 3890 Ohm None of these 844.5 Ohm 1234 Ohm 692.2 Ohm 3890 Ohm None of these 844.5 Ohm 1234 Ohm ANSWER DOWNLOAD EXAMIANS APP
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