Gobezoch › Textbooks › Physics Grade 12
Physics Grade 12 Unit 5: Basics of electronics
national exam questions have come from this unit. It runs 39 pages; one careful study pass takes about 3.5 hours, and its difficulty is easier among Physics units. Each section below lists the questions set from it, with the year, and opens the page that teaches it.
5.1 Semiconductors · read p. 143
- 2017 E.C., Q8 – What will happen on a pure semiconductor when it is doped by group III element?
- 2015 E.C., Q3 – Which one of the following statements is correct about conduction in semiconductors?
- 2014 E.C., Q24 – A diode is an electronic component thatR
5.2 Diodes and their Functions · read p. 149
- 2017 E.C., Q10 – Which one of the following statements is correct about the current-voltage (I–V) characteristics of a typical semiconductor diode?
5.3 Rectification · read p. 150
- 2017 E.C., Q11 – R L Consider a circuit containing diode and load resistor are connected to an AC voltage source as shown in the figure below. If initially, polarity of 'a' is positive while 'b' is negative, Question Diagram
- 2011 E.C., Q42 – Two sinusoidal waveforms are shown: a solid curve labeled 'Voltage' passing through the origin (0, 0) and 90∘ going positive, and a dashed curve labeled 'Current' which is shifted to the right by a quarter period ( phase
5.4 Transistors and their application · read p. 154
- 2018 E.C., Q8 – Diagram D shows a transistor with emitter E on the left, collector C on the right, and base B at the bottom connected to the common line.]
- 2018 E.C., Q7 – Considering the concentration of dopants in different section of a transistors, which one of the following describes a correct order from lowest to highest?
5.5 Integrated Circuits · read p. 161
Not asked in a national paper yet.
5.6 Logic gates and logic circuits · read p. 163
Not asked in a national paper yet.
5.7 Application of electronics · read p. 171
Not asked in a national paper yet.