B: −2.4 × 10⁻¹⁹ C
Oracle Prep sorts past-paper questions by topic, so you can drill Electricity and see which topics are most likely to come up next.
Sign up free →Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content
Electrons move in a vacuum from one metal plate to another metal plate. As a result of this, there is an electric cur…
A manufacturer recommends that the longer the extension cord you use with an electric drill, the bigger the cross-sec…
The current I in a metal wire is given by the equation I = Anvq. What does the symbol n represent?
The prefixes nano (n), micro (μ) and pico (p) are often used with units. Which row shows their correct values?
The SI unit of specific heat capacity is J kg⁻¹ K⁻¹. What is the unit of specific heat capacity expressed in SI base …
Quantity X has a fractional uncertainty of x. Quantity Y has a fractional uncertainty of y. What is the fractional un…