sources & illumination zinc oxide light-emitting diodes: a review optical engineering ( ) characterization and imaging of nanostructured materials using tabletop extreme ultraviolet light sources proceedings of spie ( ) lithography & microelectronics control of optical nanometer gap shapes made via...
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to flow from collector to emitter. the resistor is used to limit the current flowing into the transistor's base (too much current could cause damage). with the transistor out of cutoff, the v supply connected to the relay coil has a path to ground through the collector and emitter of the bjt. the diode...
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