Electronics · CSEC Physics

9 past-paper questions on Electronics, part of Electricity and Magnetism, from every CSEC Physics paper on Quelpr.

1. 5(a)(iii)4 marks· CSEC Physics · 1990 · Paper 2The commutator is removed and a p-n diode is placed in series with the a.c. generator. Distinguish between the p-type material and n-type material of which the diode is made.
2. 5(a)(iv)3 marks· CSEC Physics · 1990 · Paper 2On the axes provided, draw a graph of current against time to represent the output of the a.c. generator and diode.
3. 4(a)(iii)3 marks· CSEC Physics · 1992 · Paper 2The coil makes 10 revolutions in one second. On the axes provided, sketch a graph to represent the variation of output current with time during the first two revolutions of the coil. Indicate the scale used on EACH axis.
4. 3(a)(i)1 mark· Physics Q3 3(a)(i)Sketch the Vout – t graph when switch S is open.
5. 3(a)(ii)1 mark· Physics Q3 3(a)(ii)Sketch the Vout – t graph across diode D when switch S is closed.
6. 3(a)(v)2 marks· Physics Q3 3(a)(v)How can you use the circuit in Figure 1 to determine whether or not a semiconductor diode is defective?
7. 5(a)2 marks· Physics Q5 5(a)Using the axes on Figure 6, sketch the I-V graph for the semiconductor diode.
8. 5(a)(i)2 marks· Physics Q5 5(a)(i)Describe a test to show that a semi-conductor diode is defective.
9. 5(b)(ii)5 marks· Physics Q5 5(b)(ii)What ADDITIONAL component is needed to be able to charge the batteries?