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A wire carries a current of when a potential difference of is applied and when is applied
PHYSICS · Subjective · A Level · Physics · Electricity · Electricity
Problem
A wire carries a current of
0.25
A
0.25\,\text{A}
0.25
A
when a potential difference of
2.0
V
2.0\,\text{V}
2.0
V
is applied and
0.75
A
0.75\,\text{A}
0.75
A
when
6.0
V
6.0\,\text{V}
6.0
V
is applied. Calculate the resistance of the wire.
Related theory
Ohm's Law
Ohm's Law (Macroscopic)
Ohm's law, V-I graphs and ohmic/non-ohmic conductors
Current Electricity
Ohm's law and V-I graphs
Electricity
Electric Circuits
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