उपकरणाच्या आउटपुटवर शक्ती पातळी 50 dBm आहे. खालील पर्यायांमधून शक्तीचे परिपूर्ण मूल्य ओळखा.

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ALP CBT 2 Electronic Mechanic Previous Paper: Held on 21 Jan 2019 Shift 1
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  1. 1 W
  2. 100 W
  3. 500 W
  4. 10 W

Answer (Detailed Solution Below)

Option 2 : 100 W
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संकल्पना:

dBm हे मापनाचे एकक आहे जे एका निश्चित संदर्भ पातळीच्या संदर्भात शक्ती पातळीचे गुणोत्तर दर्शवण्यासाठी वापरले जाते.

dBm सह, संदर्भ पातळी 1 mW (मिलीवॅट) आहे.

dBm मधील शक्ती खालीलप्रमाणे व्यक्त केली जाते:

\(P(dBm)=10log_{10}(\frac{P}{1m})\)

P = dBm मध्ये व्यक्त करण्याची शक्ती

अनुप्रयोग:

दिलेल्याप्रमाणे, dBm मध्ये आउटपुट पॉवर = 50

\(50=10log_{10}(\frac{P}{1m})\)

\(5=log_{10}(\frac{P}{1m})\)

दोन्ही बाजूंना अँटिलॉग घेतल्यास, आपणास मिळते:

\(10^5=\frac{P}{1m}\)

P = 105 × 10-3 W

P = 100 W

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