alleryहें . 60 W आनी 200 V हांगा 40 W रेटेड बल्ब 200 V च्या आड माळेंत जोडिल्ले आसतात. सतत प्रतिकार अशें मानचें. खंयच्या बल्बांत चड शक्त वापरतात आनी एकूण शक्त कितें?
Aहें .
40 W बल्ब;
24 W हें .
Bहें .
60 W बल्ब;
24 W हें .
Cहें .
40 W बल्ब;
100 W हें .
Dहें .
60 W बल्ब;
100 W हें .
Answer & Solution
Correct answer: A. हें .
40 W बल्ब;
24 W हें .
हें .
तांचे प्रतिकार 200²/60 आनी 200²/40 Ω आसतात, देखून श्रृंखला शक्त 24 W आनी चड प्रतिरोधक 40 W बल्ब चड वापरता.
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