State whether the following statement is true or false:

1 ohm is ratio of 1volt and 1 ampere.

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True

False

answer is A.

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Detailed Solution

The given statement is true.
Concept:
The amount of resistance a conductor's molecules produce when current runs through it is known as resistance. Electric current and potential difference are measured in amps and volts, respectively, while electrical resistance is measured in ohms.
When a potential difference is introduced across a conductor, electric current is defined as the uniform flow of charges through the conductor. These charges may be ions, negative charges, or even positive charges. Moving electrons from a region of lower electric potential to a region of higher electric potential causes an electric current to flow through a conductor. In contrast to how electrons move, current moves in the other direction. So current moves from potentials with greater values to those with lower values. The conductor's molecules act as barriers for the electrons as they move through it. Resistance is the term for such obstacle (R) . Upon calculation,
R∝l

R \propto \frac{l}{A}

R = ρ \frac{l}{A}

Ohm's Law states that the electric current (I) flowing through a conductor is directly proportional to the potential difference (V) across any two points in the conductor. This is,
V∝I
The estimated proportionality constant is K once the proportionality sign is removed.
V=IK
K=