Basic Electronics Paper 2, WASSCE (SC), 2017

Question 3

 

  1.  Define electric field straight.
  2. Draw the circuit diagram of a:
  3. Charging capacitor;
  4. Discharging capacitor.

 

Observation

 

  1. Definition of Electric Field Strength E = F/Q

               Or
Electric field strength = Force/Charge

 

  1.   Circuit diagram of a charging capacitor

                 

  1.  Circuit diagram of a discharging capacitor

                     


Many candidates avoided this questions and virtually all candidates that responded to it 
got it wrong. For charging capacitor, capacitor is connected in series with resistor and  
their combination connected to voltage source. However, for discharging capacitor,
charged capacitor is connected in parallel with a resistor and not connected to source.