Talk:A-level Physics/Electrons, Waves and Photons/D.C. circuits

Specification
From the OCR GCE Physics A specification. Tick with &#10004; when you feel each part of the specification has been covered. Try not to add much more than what is in this list as it would not appear in the exam anyway. Use links to wikipedia for more depth in a topic.


 * 1) Recall and use appropriate circuit symbols. &#10004;
 * 2) Draw and interpret appropriate circuit diagrams. &#10004;
 * 3) Use the concept that e.m.f. is defined in terms of the energy transferred by a source in driving unit charge round a complete circuit.
 * 4) Use energy considerations to distinguish between e.m.f. and p.d.
 * 5) Appreciate that sources of e.m.f. have internal resistance and understand the simple consequences of internal resistance for external circuits.
 * 6) Recall Kirchhoff’s first law and appreciate this as a consequence of conservation of charge.
 * 7) Understand Kirchhoff’s second law as a consequence of conservation of energy.
 * 8) Recall and use a formula for the combined resistance of two or more resistors is series.
 * 9) Recall and use a formula for the combined resistance of two or more resistors is parallel.
 * 10) Solve problems involving series and parallel circuits for one source of e.m.f.
 * 11) Understand the use of a potential divider as a source of variable p.d.
 * 12) Describe and explain the use of thermistors and light-dependant resistors in potential dividers to provide a potential difference which is dependant on temperature and on light intensity respectively.