Engineering, 31.10.2019 02:31 melidacampos12
Aresistor is made out of a long wire having a length l. each end of the wire is attached to a termina of a battery providing a constant voltage v0. a currect i flows through the wire. if the wire were cut in half, making two wires of length l/2, and both wires were attached to the battery (the end of both wires attached to one terminal, and the other ends attached to the other terminal), what would be the total currect flowing through the two wires? a) 4i b) 2i c) i d) i/2 e) i/4
Answers: 3
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The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody
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With increases in magnification, which of the following occur? a. the field of view decreases. b. the ambient illumination decreases. c. the larger parts can be measured. d. the eyepiece must be raised.
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