Question

+
v
V
V-
First use only one cell as the source in the
circuit. Note the reading in the ammeter I,
for the current and reading of the voltmeter
V for the potential difference across the
nichrome wire XY in the circuit. Tabulate
them in the Table given.
Next connect two cells in the circuit and note
the respective readings of the ammeter and
voltmeter for the values of current through
X
K
the nichrome wire and potential difference
across the nichrome wire.
Repeat the above steps using three cells and
then four cells in the circuit separately.
Calculate the ratio of V to 1 for each pair of Figure 12.2 Electric circuit for studying Ohm's law
potential difference V and current I.
$. Number of cells
No. used in the
circuit
Current through
the nichrome
wire, 1
(ampere)
Potential difference
across the
nichrome
wire, V (volt)
V/I
(volt/ampere)
1
1
2
2
3
3
4
4​

Answer 1

Answer:

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