During each cycle, alternating voltage reaches a peak value
Correct answer: B. Two times
- A. One time
- B. Two times
- C. Four times
- D. A number of times depending on the frequency
Explanation
An alternating voltage sine wave consists of a positive half-cycle and a negative half-cycle. The voltage reaches its maximum positive peak once and its maximum negative peak once, for a total of two peak values in each complete cycle.
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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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592 free Alternating Current MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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