Skip to content
MathsGenie logo
Open app

Course home

  1. A Level
  2. Physics AQA
  3. Question bank

Capacitance (A-level only)

EasyMediumHard
123456789101112
Question 9

Which of the following descriptions correctly represents the behavior of the potential difference VCV_CVC​ across the supercapacitor and the magnitude of the current III in the circuit against time ttt as the supercapacitor charges?

Both VCV_CVC​ and III start at zero at t=0t = 0t=0 and increase exponentially towards constant maximum values.

VCV_CVC​ starts at zero and increases exponentially towards VsV_sVs​, while III starts at a maximum value VsR\frac{V_s}{R}RVs​​ and decreases exponentially to zero.

VCV_CVC​ starts at VsV_sVs​ and decreases exponentially to zero, while III starts at zero and increases exponentially to a maximum value VsR\frac{V_s}{R}RVs​​.

Both VCV_CVC​ and III start at maximum values at t=0t = 0t=0 and decrease exponentially to zero.

Capacitance (A-level only) Questions

  1. A Level
  2. /Physics
  3. /Capacitance (A-level only)