(1)draw a labelled circuit diagram to study the relationship between the current flowing through a conductor and the potential difference applied across its two ends .state the formula corelating the current (I)in a conductor and potential difference(V) across it. also show their relationship in the diagram.
(2) what would be the resistance of a resistor if the current flowing through it is 0.15 A when the potential difference across it is 1.05 V ?
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answer of 2nd question
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The formula states that the current passing through a conductor is directly proportional to the potential difference across its ends, provided the physical conditions like temperature, density, etc. remain
unchanged. This is Ohm's law.
R is called resistance of the conductor .
As V = 1.05 V
I = 0.15 A
V = IR
1.05 = 0.15 × R
R = 1.05 / 0.15 = 7Ω
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