एक प्रत्यावर्ती वोल्टता 2 सेकंड में 80 चक्रों को पूरा करती है। इसकी आवृत्ति ज्ञात कीजिए।

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PGCIL DT Electrical 5 May 2023 Official Paper
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  1. 40 Hz
  2. 160 Hz
  3. 20 Hz
  4. 480 Hz

Answer (Detailed Solution Below)

Option 1 : 40 Hz
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Detailed Solution

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संकल्पना:

\(Frequency ~(f) = \frac{Number ~of~ Cycles}{ Time ~(in ~seconds)}\)

चक्रों की संख्या = 80, समय = 2 सेकंड 

\(Frequency ~(f) = \frac{80~ Cycles}{ 2 ~(in ~seconds)}\)

आवृत्ति (f) = 40 चक्र प्रति सेकंड 

इसलिए, प्रत्यावर्ती वोल्टता की आवृत्ति 40 हर्ट्ज़ (Hz) होती है।

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