An ammeter in the laboratory shows a resistance of on its 3 A scale and it also contains a galvanometer of 10 ohm. Find the sensitivity of the galvanometer?
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You want to build a 2.0 A ammeter from an galvanometer coil with a resistance of 5.0 O which can sustain a maximum current of 15 mA. What resistance should you place in parallel with the galvanometer coil?
An ammeter reads 7.9 A at full-scale deflection. The meter wasconstructed by inserting a resistor in parallel with a 70.7(ohms)galvanometer coil that deflects full-scale when the voltage acrossit is 72.7 mV.What is the value of the parallel resistance that should be used?