Electronic Principles What is the smallest number of polarities required for current flow? None of these One - a negative terminal Three - negative, positive and neutral terminals Four - two negative and two positive Two - a negative terminal and a positive terminal None of these One - a negative terminal Three - negative, positive and neutral terminals Four - two negative and two positive Two - a negative terminal and a positive terminal ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What causes the depletion layer? None of these Recombination Doping Ions Barrier potential None of these Recombination Doping Ions Barrier potential ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles For a pure capacitor: 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 ac current and voltage are exactly in phase None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts mechanical pressure to electrical energy is called a: solar cell photodiode piezoelectric device None of these nicad cell solar cell photodiode piezoelectric device None of these nicad cell ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A low-pass filter: has no effect on ac signals passes lower-frequency signals and reduces higher-frequency signals None of these reduces the level of all frequencies by a significant amount passes higher-frequency signals and reduces lower-frequency signals has no effect on ac signals passes lower-frequency signals and reduces higher-frequency signals None of these reduces the level of all frequencies by a significant amount passes higher-frequency signals and reduces lower-frequency signals ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature an intrinsic silicon crystal acts approximately like an insulator a conductor None of these a battery a piece of copper wire an insulator a conductor None of these a battery a piece of copper wire ANSWER DOWNLOAD EXAMIANS APP
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