Electronic Principles A device that converts mechanical pressure to electrical energy is called a: photodiode None of these piezoelectric device solar cell nicad cell photodiode None of these piezoelectric device solar cell nicad cell ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The graph of current gain versus collector current indicates that the current gain is contant equals the collector current divided by the base current varies enormously None of these varies slightly is contant equals the collector current divided by the base current varies enormously None of these varies slightly ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a current source has an Ideal current of 10 mA and an internal resistance of 20 MW. For what values of load resistance will the current source appear stiff? 20 km or less 20 k Ohm or more None of these 200 k Ohm or more 200 k Ohm or less 20 km or less 20 k Ohm or more None of these 200 k Ohm or more 200 k Ohm or less ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following kinds of materials has the lowest permeability? A paramagnetic material A diamagnetic material A feiTomagnetic material None of these All of these A paramagnetic material A diamagnetic material A feiTomagnetic material None of these All of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The south pole of a magnet is the one: None of these that has its molecules arranged in a random pattern that would be attracted to the earth's south magnetic pole that would be repelled by the north pole of another magnet that would be attracted to the earths north magnetic pole None of these that has its molecules arranged in a random pattern that would be attracted to the earth's south magnetic pole that would be repelled by the north pole of another magnet that would be attracted to the earths north magnetic pole 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 12 V 18 V None of these 30 V 24 V 12 V 18 V None of these 30 V ANSWER DOWNLOAD EXAMIANS APP
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