Exam-style question
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What is the relationship between the period and frequency of an alternating current?.
- A.Frequency is the reciprocal of the period
- B.Period is the reciprocal of the frequency
- C.Frequency and period are equal
- D.Period is the square of the frequency
Model answer
What a good answer should say
- Frequency is the reciprocal of the period
Explanation
Why this works
The frequency (f) of an alternating current is defined as the number of cycles per second, while the period (T) is the time taken for one complete cycle. The relationship is given by the formula f = 1/T.
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