Page 7 - 10-phy-14 Current Electricity
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12. Note the reading V ′of the total potential difference across the three
resistors for the same current I in the circuit.
13. Take two more readings for V1, V2, V3 and I by changing the current of
the circuit with the help of rheostat and record them in table 14.2.1.
No. Ammeter Voltmeter readings Sum of Potential Difference
of reading Drops
Observations Obs. V1 V1 V1 V¢ V-V¢
and Data I (V) (V) (V) V = V1+V2+V3 (V)
Processing 1 (V)
2 (A)
3
Table 14.2.1
No. Resistance Resistance Resistance Sum of Observed Difference
of resistances
Obs. Re=R1+ R2+ R3 Equivalent R-Re
resistance
R1 = V1 R2 = V2 R3 = V3
I I I R = VÃ
I
(W) (W) (W) (W) (W) (W)
1
2
3
Table 14.2.2
Conclusions
1.
2.
3.
36
resistors for the same current I in the circuit.
13. Take two more readings for V1, V2, V3 and I by changing the current of
the circuit with the help of rheostat and record them in table 14.2.1.
No. Ammeter Voltmeter readings Sum of Potential Difference
of reading Drops
Observations Obs. V1 V1 V1 V¢ V-V¢
and Data I (V) (V) (V) V = V1+V2+V3 (V)
Processing 1 (V)
2 (A)
3
Table 14.2.1
No. Resistance Resistance Resistance Sum of Observed Difference
of resistances
Obs. Re=R1+ R2+ R3 Equivalent R-Re
resistance
R1 = V1 R2 = V2 R3 = V3
I I I R = VÃ
I
(W) (W) (W) (W) (W) (W)
1
2
3
Table 14.2.2
Conclusions
1.
2.
3.
36
