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 550 Ohm 400 Ohm 410 Ohm 310 Ohm None of these 550 Ohm 400 Ohm 410 Ohm 310 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Molecule is None of these A atom that has an excessive number of electrons in its outer orbit The smallest particle of a substance that retains the properties of that substance A atom that has a shortage of electrons in its outer orbit A atom that flows whenever there is an imbalance of electrical charges between two points None of these A atom that has an excessive number of electrons in its outer orbit The smallest particle of a substance that retains the properties of that substance A atom that has a shortage of electrons in its outer orbit A atom that flows whenever there is an imbalance of electrical charges between two points 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 None of these 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 The amount of magnetic flux that is not confined to the core material of an electromagnet The circular magnetic field that surrounds a conductor carrying a current None of these 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 The amount of magnetic flux that is not confined to the core material of an electromagnet 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? 220 ohm 445 ohm None of these 690 ohm 150 ohm 220 ohm 445 ohm None of these 690 ohm 150 ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A battery is a device composed of one or more: piezoeletric cells chemical cells None of these voltage generators solar cells piezoeletric cells chemical cells None of these voltage generators solar cells ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When operating below its resonant frequency, a parallel RLC circuit has the characteristics of a: parallel RLC circuit operated above its resonant frequency parallel RC circuit parallel RL circuit None of these purely resistive circuit parallel RLC circuit operated above its resonant frequency parallel RC circuit parallel RL circuit None of these purely resistive circuit ANSWER DOWNLOAD EXAMIANS APP
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