Calculate the diameter of a 0.018-cm length of tungsten filament in a small lightbulb if its resistance is 72 0. If 46mA current flows through the filament, find the potential difference across the source. (a) the diameter of the wire (in m) = (b) Potential difference across the source in V =
Calculate the diameter of a 0.018-cm length of tungsten filament in a small lightbulb if its resistance is 72 0. If 46mA current flows through the filament, find the potential difference across the source. (a) the diameter of the wire (in m) = (b) Potential difference across the source in V =
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Transcribed Image Text:Calculate the diameter of a 0.018-cm length of
tungsten filament in a small lightbulb if its
resistance is 72 Q. If 46mA current flows through
the filament, find the potential difference across
the source.
(a) the diameter of the wire (in m) =
(b) Potential difference across the source in V =
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