A voltmeter, an ammeter and a resistance are connected in series with a battery. The voltmeter gives same deflection but the deflection of ammeter is almost zero. Explain why?
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The shunt resistor (a parallel resistance with the ammeter) is used to protect the meter when high current passes through the ampere meter coils. ... So it passes through the shunt resistor or ammeter. That's why there is no deflection in ampere meter when connected in series with battery and voltmeter in series.
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