A potentiometer wire of length 4 m has a resistance of 4 Q. What resistance must be connected in series with the wire and an accumulator of e.m.f 2 volts, so as to get a potential drop of 10-3 volts/cm of the wire.
A potentiometer wire of length 4 m has a resistance of 4 Q. What resistance must be connected in series with the wire and an accumulator of e.m.f 2 volts, so as to get a potential drop of 10-3 volts/cm of the wire.
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Transcribed Image Text:A potentiometer wire of length 4 m has
a resistance of 4 Q. What resistance must be
connected in series with the wire and an
accumulator of e.m.f 2 volts, so as to get a
potential drop of 10-3 volts/cm of the wire.
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