NCUK IFY Physics - R) Resistance

Select the correct equations

• $R=\frac{I}{V}$

• $R=\frac{I^2}{P}$

• $R=V^2P$

• $R=\frac{V}{I}$

• $R=\frac{P}{I^2}$

 $R$  

•  $V$  

•  $A$  

•  $\Omega$  

•  $J$  

•  $W$  

Ohm's law

• $V=IR$

• $V\propto I$

• $V\propto I$ when $T$ is constant

Resistance is the ability of a component to...

• slow current

• inhibit current

• stop current

• prevent current

• Filament bulb

• Resistor at constant $T$

• LED

• Filament bulb

• Resistor at constant $T$

• LED

• Filament bulb

• Resistor at constant $T$

• LED

 $\rho$  

• Resistance

• Resistivity

• Power

• Proton

$\rho$

• $\Omega$

• $\Omega m$

• $\Omega m^2$

• $\Omega m^3$

Resistivity is the ability of a material to...

• slow current

• inhibit current

• stop current

• prevent current