Electronic Principles The period of a waveform is: the time required for the voltage to rise from 10% to 90% of the peak amplitude the time required to complete one full cycle None of these the number of cycles completed in one second equal to 0.707 times the peak amplitude the time required for the voltage to rise from 10% to 90% of the peak amplitude the time required to complete one full cycle None of these the number of cycles completed in one second equal to 0.707 times the peak amplitude 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 commutator rotor None of these battery armature commutator rotor None of these battery ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Determine the resistance value and tolerance of a resistor that has the following color bands; first band is red, second band is red, third band is orange, and the fourth band is gold 220 Ohm, 10% None of these 22, 000 Ohm, 10% 22,000 Ohm, 5% 220 Ohm, 5% 220 Ohm, 10% None of these 22, 000 Ohm, 10% 22,000 Ohm, 5% 220 Ohm, 5% ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage? None of these 700 V 208 V 651 V 707 V None of these 700 V 208 V 651 V 707 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The primary impedance of a transformer is 60 ohm and the secondary impedance is 120 ohm. What is the impedance ratio? 0.25 4 None of these 0.5 180 0.25 4 None of these 0.5 180 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If a load resistance is 1 kW, a stiff voltage source has a resistance of less than 10 Ohm None of these At least 10 Ohm Less than 100 k Ohm More than 100 k Ohm less than 10 Ohm None of these At least 10 Ohm Less than 100 k Ohm More than 100 k Ohm ANSWER DOWNLOAD EXAMIANS APP
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