A galvanometer has a resistance of 16 N and gives a full scale deflection and when a current of 20 mA is passed through it. The only shunt resistance available is 0.04 Q which is not appropriate to convert galvanometer into an ammeter. How much resistance should be connected in series with coil of galvanometer so that the range of ammeter is 10 A ?
A galvanometer has a resistance of 16 N and gives a full scale deflection and when a current of 20 mA is passed through it. The only shunt resistance available is 0.04 Q which is not appropriate to convert galvanometer into an ammeter. How much resistance should be connected in series with coil of galvanometer so that the range of ammeter is 10 A ?
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Transcribed Image Text:A galvanometer has a resistance of 16 Q
and gives a full scale deflection and when a
current of 20 mA is passed through it. The
only shunt resistance available is 0.04 Q which
is not appropriate to convert galvanometer
into an ammeter. How much resistance should
be connected
in
series
with
coil
of
galvanometer so that the range of ammeter is
10 A ?
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