Electronic Principles Assuming 100% efficiency, what is the power being consumed at the secondary winding of the transformer described in question 91? 1000 W None of these 200 W 100 W 20 W 1000 W None of these 200 W 100 W 20 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a step-down transformer, which is larger? Impossible to say Secondary voltage None of these Neither Primary voltage Impossible to say Secondary voltage None of these Neither Primary voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The direction of conventional current flow is: None of these from negative to positive from neutral to positive from left to right from positive to negative None of these from negative to positive from neutral to positive from left to right from positive to negative ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following kinds of materials has the lowest permeability? A feiTomagnetic material None of these A paramagnetic material A diamagnetic material All of these A feiTomagnetic material None of these A paramagnetic material A diamagnetic material All of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: 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 an increase in current through the coil causes no further increase in the mmf changing the polarity of the current in the coil changes the polarity of the magnetic field around the core 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 an increase in current through the coil causes no further increase in the mmf 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 What is a negative ion? An atom that contains more protons than neutrons An atom that contains more electrons than protons None of these An atom that contains more electrons than neutrons An atom that contains more protons than electrons An atom that contains more protons than neutrons An atom that contains more electrons than protons None of these An atom that contains more electrons than neutrons An atom that contains more protons than electrons ANSWER DOWNLOAD EXAMIANS APP
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