A resistor dissipates power P P\,P when there is a current I I\,I passing through it.
A student calculates the ratio PI\displaystyle \frac{P}{I}IP.
In which unit is the student's answer measured?
ampere
joule
ohm
volt
69 exam-style questions on CIE IGCSE Physics 4.2.5 Electrical energy and electrical power. Each one has a worked solution and a mark scheme showing where the marks go.