Electronic Principles Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value? 30.4 V None of these 38.74 V 35.4 V 37.4 V 30.4 V None of these 38.74 V 35.4 V 37.4 V 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 k Ohm or more None of these 200 k Ohm or more 20 km or less 200 k Ohm or less 20 k Ohm or more None of these 200 k Ohm or more 20 km or less 200 k Ohm or less ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm? 150 ohm 690 ohm None of these 445 ohm 220 ohm 150 ohm 690 ohm None of these 445 ohm 220 ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Doping Thermal energy Free electrons None of these Valence electrons Doping Thermal energy Free electrons None of these Valence electrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following principles best describes the basic operation of an electromagnet? Current flowing through a conductor generates a magnetic field None of these Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract, while unlike poles repel Like magnetic poles repel, while unlike poles attract Current flowing through a conductor generates a magnetic field None of these Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract, while unlike poles repel Like magnetic poles repel, while unlike poles attract ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When the Q point moves along the load line, the voltage increases when the current None of these Stays the same Increases Decreases Can be any of above None of these Stays the same Increases Decreases Can be any of above ANSWER DOWNLOAD EXAMIANS APP
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