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प्रश्न
State Ohm’s law.
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उत्तर
Ohm’s law states that electric potential difference across two points in an electrical circuit is directly proportional to the current passing through it. That is,
V~I
The proportionality constant is tne resistance (R) offered between the two points.
Hence, Ohm’s law is written as,
V = RI (or) V = IR
Where, V is the potential difference in volt (V), I is the current flow in ampere (A), R is the resistance in ohm (Ω)
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संबंधित प्रश्न
Name a device that helps to maintain a potential difference across a conductor.
How much work is done when one coulomb charge moves against a potential difference of 1 volt?
What is the unit of electric charge?
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The device used for measuring potential difference is known as:
If a potential difference of 10 V causes a current of 2 A to flow for 1 minute, how much energy is transferred?
The potential difference between the terminals of an electric iron is 240 V and the current is 5.0 A. What is the resistance of the electric iron?
Explain the statement ‘the potential difference between two points is 1 volt’.
A 10 m long wire of a particular material is of resistance 5Ω What will be the resistance of 10m long wire of the same material but the double radius.
Assertion (A): Charges flow from higher potential to lower potential.
Reason (R): Current flows mainly due to the flow of electrons.
