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An ammeter gives full deflection when a current of 2 A flows through it. The resistance of ammeter is . If the same ammeter is to be used for measuring a maximum current of 5 A, then the ammeter must be connected with a resistance of
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Correct option is C
iig=1+GS ⇒ 52 =1+12S ⇒ S=8 Ω In parallelSimilar 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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