Electronic Principles A zener diode has a voltage of 10 V and a current of 20 mA. What is the power dissipation? 10 mW 300 mW 20 mW None of these 200 mW 10 mW 300 mW 20 mW None of these 200 mW ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio for the transformer specified in the above question? 0.575 0.707 10.738 1.5 None of these 0.575 0.707 10.738 1.5 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the currents in a parallel RL circuit? The total current leads the total voltage by less than 90 The total current is less than the sum of the currents through the resistance and inductance The total current is equal to the sum of the currents through the resistance and inductance The current always has the same amplitude and phase for every part of the circuit None of these The total current leads the total voltage by less than 90 The total current is less than the sum of the currents through the resistance and inductance The total current is equal to the sum of the currents through the resistance and inductance The current always has the same amplitude and phase for every part of the circuit None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit? Permeance Reluctance Permeability There is no valid comparison Retentivity Permeance Reluctance Permeability There is no valid comparison Retentivity ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Doping Valence electrons Thermal energy None of these Free electrons Doping Valence electrons Thermal energy None of these Free electrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current is The force that causes electrons to flow The number of free electrons in an atom None of these The flow of charged particles through a material An imbalance of electrical charges The force that causes electrons to flow The number of free electrons in an atom None of these The flow of charged particles through a material An imbalance of electrical charges ANSWER DOWNLOAD EXAMIANS APP
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