Among milliameter and ameter which one has higher resistance
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Milliammeter has lower resistance. Consider a wire carrying 10mA , if we attach an ammeter or a milliammeter to it, the deflection of the ammeter will be much lower than the deflection of milliammeter.
ϕ=(NABk)VRϕ=(NABk)VR
Since, milliammeter is more sensitive, the resistance is lower in milliammeter.
For a constant voltage , the current through a milliammeter must be lower (in the order of milliamperes) but the current through a ammeter would be higher (in the order of amperes) thus the resistance in milliammeter will be higher.
Milliammeter has lower resistance. Consider a wire carrying 10mA , if we attach an ammeter or a milliammeter to it, the deflection of the ammeter will be much lower than the deflection of milliammeter.
ϕ=(NABk)VRϕ=(NABk)VR
Since, milliammeter is more sensitive, the resistance is lower in milliammeter.
For a constant voltage , the current through a milliammeter must be lower (in the order of milliamperes) but the current through a ammeter would be higher (in the order of amperes) thus the resistance in milliammeter will be higher.
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