Electronic Principles A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have? None of these 400 Ohm 550 Ohm 310 Ohm 410 Ohm None of these 400 Ohm 550 Ohm 310 Ohm 410 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The current gain of a transistor is defined as the ratio of the collector current to the emitter current supply current base current collector current None of these emitter current supply current base current collector current None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When operating below its resonant frequency, a parallel RLC circuit has the characteristics of a: None of these parallel RLC circuit operated above its resonant frequency purely resistive circuit parallel RL circuit parallel RC circuit None of these parallel RLC circuit operated above its resonant frequency purely resistive circuit parallel RL circuit parallel RC circuit ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A power transformer steps 100 V down to 10 V. If the current in its primary winding is 2 A, what is the current in the secondary winding? 0.20833333333333 None of these 50 A 20 A 0.20833333333333 None of these 50 A 20 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much power is being dissipated by a 1000 W resistance that has 25 V applied to it? 0.625 W None of these 325 kW 0.24 W 80 W 0.625 W None of these 325 kW 0.24 W 80 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The direction of electron current flow is: None of these from positive to negative from right to left from neutral to positive from negative to positive None of these from positive to negative from right to left from neutral to positive from negative to positive ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS