Electronic Principles A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage? 651 V None of these 700 V 208 V 707 V 651 V None of these 700 V 208 V 707 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a series RLC circuit: always increases as the applied frequency increases None of these always decreases as the applied frequency increases is maximum at the resonant frequency is minimum at the resonant frequency always increases as the applied frequency increases None of these always decreases as the applied frequency increases is maximum at the resonant frequency is minimum at the resonant frequency ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much power is being dissipated by a 1000 W resistance that has 25 V applied to it? 80 W None of these 325 kW 0.625 W 0.24 W 80 W None of these 325 kW 0.625 W 0.24 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At cut off, the Q point is at infinity upper end of the load line lower end of the load line None of these middle of the load line infinity upper end of the load line lower end of the load line None of these middle of the load line ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If a load resistance is 1 kW, a stiff current source has a resistance of None of these At least 10 Ohm Less than 10 Ohm Less than 100 k Ohm More than 100 k Ohm None of these At least 10 Ohm Less than 10 Ohm Less than 100 k Ohm More than 100 k Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases best describes residual magnetism? The amount of magnetic flux that is not confined to the core material of an electromagnet The force of attraction between the poles of a permanent and temporary magnetic field Magnetism that remains in the core of an electromagnet after the current through the coil is turned off 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 The force of attraction between the poles of a permanent and temporary magnetic field Magnetism that remains in the core of an electromagnet after the current through the coil is turned off None of these The circular magnetic field that surrounds a conductor carrying a current ANSWER DOWNLOAD EXAMIANS APP
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