Electronic Principles The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be: Same as the primary current No more than 10% less than the primary current None of these One-half the primary current Twice the primary current Same as the primary current No more than 10% less than the primary current None of these One-half the primary current Twice the primary current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The merging of a free electron and a hole is called Covalent bonding Recombination Lifetime None of these Thermal energy Covalent bonding Recombination Lifetime None of these Thermal energy ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When a parallel RLC circuit is operating at its resonant frequency: inductive reactance is equal to the capacitive reactance the difference between inductive and capacitive reactance is equal to the resistance capacitive reactance is greater than the inductive reactance inductive reactance is greater than the capacitive reactance None of these inductive reactance is equal to the capacitive reactance the difference between inductive and capacitive reactance is equal to the resistance capacitive reactance is greater than the inductive reactance inductive reactance is greater than the capacitive reactance None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The voltage across a 1N4001 is 0.93V when the current is 1A. What is the power dissipation of the diode for these values? 9.3 W 0.93 V None of these 0.93 W 0.041666666666667 9.3 W 0.93 V None of these 0.93 W 0.041666666666667 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts thermal energy to electrical energy is called a: chemical cell None of these piezoelectric devices solar cell thermocouple chemical cell None of these piezoelectric devices solar cell thermocouple ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases best describes residual magnetism? The circular magnetic field that surrounds a conductor carrying a current The amount of magnetic flux that is not confined to the core material of an electromagnet Magnetism that remains in the core of an electromagnet after the current through the coil is turned off The force of attraction between the poles of a permanent and temporary magnetic field None of these The circular magnetic field that surrounds a conductor carrying a current The amount of magnetic flux that is not confined to the core material of an electromagnet Magnetism that remains in the core of an electromagnet after the current through the coil is turned off The force of attraction between the poles of a permanent and temporary magnetic field None of these ANSWER DOWNLOAD EXAMIANS APP
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