m=1 सह AM मध्ये, एका पार्श्वपट्टमधील शक्ती आहे:

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RRB ALP Mechanic Radio & TV 23 Jan 2019 Official Paper (Shift 3)
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  1. एकूण शक्तीच्या एक चतुर्थांश
  2. एकूण शक्ती प्रमाणेच
  3. एकूण शक्तीच्या तीन चतुर्थांश
  4. एकूण शक्तीचा एक दशांश

Answer (Detailed Solution Below)

Option 1 : एकूण शक्तीच्या एक चतुर्थांश
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Detailed Solution

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योग्य पर्याय 1 आहे.

संकल्पना:

प्रसारित AM तरंगची शक्ती खालीलप्रमाणे दिली जाते:

\(P_t = {P_c}\left( {1 + \frac{{{μ ^2}}}{2}} \right)\)

\(P_t = {P_c} + P_c\frac{μ ^2}{2}\)

वाहकातील शक्ती = Pc

दोन्ही पार्श्वपट्टमधील शक्ती याद्वारे दिले जाते:

\(P_s= \frac{{{P_c}{μ^2}}}{2}\)

शक्ती पार्श्वपट्टच्या डावीकडे आणि उजवीकडे समान रीतीने वितरीत केली जात असल्याने, पार्श्वपट्टपैकी एका मधील शक्ती खालीलप्रमाणे दिली जाते:

\(P_{s1}= \frac{{{P_c}{u^2}}}{4}\) ............(1)

स्पष्टीकरण:

दिलेला आपरिवर्तनांक 1 आहे

आपरिवर्तनांक = 1 हे समीकरण 1 मध्ये ठेवले आहे

\(P_{s1}= \frac{{{P_c}{1^2}}}{4} = \frac{{{P_c}{}}}{4}\)

म्हणून पार्श्वपट्टमधील शक्ती एकूण शक्तीच्या एक चतुर्थांश आहे.

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