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Table (B) for reding ammeter and voltmeter

CALCULATION
1. Find the ratio of V and I for each corrected set of observation.
Mean value of R = …………. Ω
2. Plot the graph between the potential difference ‘V along x-axis and the current T
along y-axis for I-V graph as shown or ‘V’ on y-axis and T on x-axis. _
3. Find the slope of line.
(i) For I-V graph,
Slope of line AB =BC/AC=I 2-I 1/V 2-V 1 (Conductance)
.’. Resistance of nichrome (or manganin) wire = 1/slope of line AB
=………………….Ω
(ii) For V-I graph,
Slope of line AB =BC/AC=I 2-I 1/V 2-V 1=Resistance of nichrome (or manganin) wire
=………………Ω