Questions
A galvanometer of resistance 30 ohm is converted into an ammeter of range 2.8 A by connecting a shunt resistance 12 ohm to the galvanometer. What can be the range of ammeter if a resistance 6 ohm is connected in parallel to the shunt 12 ohm?
detailed solution
Correct option is D
IIg=S+GS⇒I1I2=S1+GS2+G×S2S1S1=12 Ω and S2=12×612+6=4Ω2.8I2=4234×412I2=6.8 ATalk to our academic expert!
Similar Questions
The ammeter has range 1 ampere without shunt. The range can be varied by using different shunt resistances. The graph between shunt resistance and range will have the nature
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