Energy, power and resistance

A non-ohmic electronic component has a current-voltage ( $I$ - $V$ ) characteristic described by the relationship:

\alpha V^2

where $V−2\alpha = 1.5 \times 10^{-2} \text{ A V}^{-2}$ and $V\,$ is the potential difference across the component.

What is the electrical resistance of this component when the potential difference across it is 4.0 V?

$Ω0.060\ \Omega$

$Ω8.3\ \Omega$

$Ω17\ \Omega$

$Ω0.24\ \Omega$

A non-ohmic electronic component has a current-voltage ( $I$ - $V$ ) characteristic described by the relationship:

\alpha V^2

where $V−2\alpha = 1.5 \times 10^{-2} \text{ A V}^{-2}$ and $V\,$ is the potential difference across the component.

What is the electrical resistance of this component when the potential difference across it is 4.0 V?

$Ω0.060\ \Omega$

$Ω8.3\ \Omega$

$Ω17\ \Omega$

$Ω0.24\ \Omega$

Energy, power and resistance Questions