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Distinguish between an ammeter and a voltmeter. - Physics

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Questions

Distinguish between an ammeter and a voltmeter.

Distinguish between an ammeter and a voltmeter. (Two points each).

Distinguish Between

Solution

  Ammeter Voltmeter 
i. It measures current. It measures the potential difference.
ii. It is connected in series. It is connected in parallel.
iii. It is an MCG with low resistance. (Ideally zero) It is an MCG with high resistance. (Ideally infinite)
iv. The smaller the shunt, the greater will be the current measured. The larger its resistance, the greater will be the potential difference measured.
v. Resistance of ammeter, RA = `"SG"/("S" + "G") = "G"/"n"` Resistance of voltmeter, Rv = G + X = Gnv    
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Notes

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Chapter 9: Current Electricity - Short Answer I
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