Quelpr
3 marksCapacitors

CAPE Physics Unit 2 · May/June 2021 · Paper 2 · Question 1(a)(i)

Describe the procedure involved in storing a quantity of electric charge on an initially uncharged parallel plate capacitor.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 1(a)(ii)Explain the movement of charges in the procedure described in (a) (i).[3 marks]
  2. 1(b)On the grid provided in Figure 2 on page 7, plot a graph of the discharge current, I_D, versus time, t. Draw a smooth curve through the points.[4 marks]
  3. 1(c)(i)The time constant for the type of discharge curve obtained in (b) may be defined as the time taken for the current to decay to 1/e of its initial value (where…[4 marks]
  4. 1(c)(ii)Calculate the value of the unknown capacitor in Figure 1.[2 marks]
  5. 1(c)(iii)Calculate the charge on the capacitor before the switch is closed.[5 marks]
  6. 1(c)(iv)The capacitor consists of two metal plates separated by a layer of insulating material 0.5 mm thick and of dielectric constant 450. Determine the area of the…[5 marks]
  7. 1(d)Show, by equating the work per unit charge in moving a positive test charge q from B to A, that E, the strength of the uniform field between A and B, is equal…[4 marks]

More practice: the rest of this paper · more Capacitors questions · all CAPE Physics Unit 2 past papers