Question 6 – Units and prefixes - Edexcel Physics Questions

The average width of a microprocessor's central processing core is 1.2 cm.

A unit of distance called the core-width ( $CW\text{CW}$ ) is defined such that 1 CW is equal to this average width.

The heat flux density of thermal radiation reaching the edge of the die is $mW/μm2250\text{ mW/}\mu\text{m}^2$ .

$J/s1\text{ W} = 1\text{ J/s}$

The heat flux density, $q$ , at a distance $r\,$ from the central hot-spot is given by the equation:

\frac{\Gamma}{r^3}

where $r\,$ is measured in core-widths ( $CW\text{CW}$ ).

State the unit of $Γ\Gamma$ .

The average width of a microprocessor's central processing core is 1.2 cm.

A unit of distance called the core-width ( $CW\text{CW}$ ) is defined such that 1 CW is equal to this average width.

The heat flux density of thermal radiation reaching the edge of the die is $mW/μm2250\text{ mW/}\mu\text{m}^2$ .

$J/s1\text{ W} = 1\text{ J/s}$

The heat flux density, $q$ , at a distance $r\,$ from the central hot-spot is given by the equation:

\frac{\Gamma}{r^3}

where $r\,$ is measured in core-widths ( $CW\text{CW}$ ).

State the unit of $Γ\Gamma$ .

Units and prefixes