====== Chapter 16: Alternating Current ======
This is a sixteenth chapter of the book Physics 12 published by Punjab Curriculum and Textbook Board, Lahore, Pakistan.

After studying this chapter, the students will be able to:

  * Understand and describe time period, frequency, the peak and root mean square values of an alternating current and voltage.
  * Know and use the relationship for the sinusoidal wave.
  * Understand the flow of A.C. through resistors, capacitors and inductors.
  * Understand how phase lags and leads in the circuit.
  * Apply the knowledge to calculate the reactances of capacitors and inductors.
  * Describe impedance as vector summation of resistances.
  * Know and use the formulae ofA.C. power to solve the problems.
  * Understand the function of resonant circuits.
  * Appreciate the principle of metal detectors used for security checks.
  * Describe the three phase A.C. supply.
  * Become familiar with electromagnetic spectrum (ranging from radio waves to $7$ rays).
  * Know the production, transmission and reception of electromagnetic waves.

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| **Question**: |{{ :fsc-pctb-12:notes:fsc-pctb-12-questions-ch16.pdf |Download PDF}} |
| **Numerical**: |{{ :fsc-pctb-12:notes:fsc-pctb-12-numericals-ch16.pdf |Download PDF}} |
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{{tag>FSc FSc_Part2 PCTB Notes}}