Electronic Principles What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm? None of these 690 ohm 220 ohm 445 ohm 150 ohm None of these 690 ohm 220 ohm 445 ohm 150 ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a purely capacitive circuit: has no effect on the total circuit current cuts the total current by one-half doubles the amount of total current None of these thrice the amount of total current has no effect on the total circuit current cuts the total current by one-half doubles the amount of total current None of these thrice the amount of total current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The graph of current gain versus collector current indicates that the current gain equals the collector current divided by the base current varies slightly is contant varies enormously None of these equals the collector current divided by the base current varies slightly is contant varies enormously None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: an increase in current through the coil causes no further increase in the mmf the core is permitted to move freely within the coil frequent changes in the direction of current through the coil causes heating effects in the core material None of these changing the polarity of the current in the coil changes the polarity of the magnetic field around the core an increase in current through the coil causes no further increase in the mmf the core is permitted to move freely within the coil frequent changes in the direction of current through the coil causes heating effects in the core material None of these changing the polarity of the current in the coil changes the polarity of the magnetic field around the core ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 megohms is: 100,000 ohm one million ohms one-millionth of an ohm 1 k ohm None of these 100,000 ohm one million ohms one-millionth of an ohm 1 k ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following kinds of materials has the highest permeability? All of these None of these A diamagnetic material A paramagnetic material A ferromagnetic material All of these None of these A diamagnetic material A paramagnetic material A ferromagnetic material ANSWER DOWNLOAD EXAMIANS APP
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