Electronic Principles The rotating coil of wire in an electric motor is called the: armature commutator brush None of these loop armature commutator brush None of these loop ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What form of energy is used to maintain an imbalance of charges between the terminals of a battery? Solar energy Chemical energy None of these Mechanical energy Electronical energy Solar energy Chemical energy None of these Mechanical energy Electronical energy ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The value of a capacitor can be made larger by: increasing the frequency of the applied voltage None of these increasing the voltage applied to the plates increasing the area of the plates decreasing the area of the plates increasing the frequency of the applied voltage None of these increasing the voltage applied to the plates increasing the area of the plates decreasing the area of the plates ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles For a pure capacitor: ac current and voltage are exactly in phase None of these ac current is converted to dc voltage ac current lags the voltage by 90 degree ac current leads the voltage by 90 degree ac current and voltage are exactly in phase None of these ac current is converted to dc voltage ac current lags the voltage by 90 degree ac current leads the voltage by 90 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature an intrinsic semiconductor has No holes a few free electrons and holes None of these many free electrons many holes No holes a few free electrons and holes None of these many free electrons many holes ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz? None of these less than 1 Ohm 690 Ohm 1590 Ohm 312 Ohm None of these less than 1 Ohm 690 Ohm 1590 Ohm 312 Ohm ANSWER DOWNLOAD EXAMIANS APP
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