If the frequency of A.C generator is increased by a factor of 2 then frequency of <p>?
Correct answer: A. 2 times
- A. 2 times
- B. 3 times
- C. 4 times
- D. none
Explanation
The correct answer is that the frequency of the output alternating current becomes 2 times if the frequency of the A.C. generator is increased by a factor of 2. This is because the output frequency of an A.C. generator is directly proportional to its operational frequency. Therefore, when the generator's frequency increases, the output frequency follows suit in the same proportion. Options B and C are incorrect as they suggest a frequency increase that does not align with the direct proportionality principle. Option D is also incorrect as it suggests no change in frequency, which contradicts the premise of the question.
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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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