The Frequency of the applied AC is 2 kHz. Its time period will be:
Correct answer: A. 0.5 x 10^-3 sec
- A. 0.5 x 10^-3 sec
- B. 0.5 Sec
- C. 5 sec
- D. 2 sec
Explanation
The time period T is the reciprocal of frequency ๐ : T = 1/๐ = 1 / 2x10 = 0.5 x 10-3 seconds.
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About Alternating Current
Alternating current varies periodically, so phase relationships become essential when current passes through a resistor, capacitor or inductor. The chapter distinguishes resistance from capacitive and inductive reactance, explains phase lead and lag, and connects changing electric and magnetic fields with the production and properties of electromagnetic waves.
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