Question

What is the SI unit of resistance?

Answer 1

Step 1: Electric Resistance

1. The electric resistance is the property of an object to oppose the flow of electric current.
2. Resistance is the reciprocal of electric conductance, which measure the ease with which current flow and is denoted as $R$.
3. Its mathematical representation is $R=\frac{V}{I}$, where $V$ is voltage in volts and $I$ is current in amperes.

Step 2: SI unit of resistance

1. The SI unit of resistance is Ohm and is denoted as $\Omega$.
2. The dimensional formula for resistance is $[\mathrm{M}{\mathrm{L}}^2{\mathrm{A}}^{-2}{\mathrm{T}}^{-3}]$.