दो विद्युत प्रतिरोधों को श्रेणीक्रम में जोड़ने पर उनका तुल्य प्रतिरोध 25 ओम आता है । इनको समान्तर क्रम में जोड़ने पर तुल्य प्रतिरोध 4 ओम आता है । प्रत्येक विद्युत प्रतिरोध का प्रतिरोध ज्ञात कीजिए ।

दो विद्युत प्रतिरोधों को श

1.	दो विद्युत प्रतिरोधों को श्रेणीक्रम में जोड़ने पर उनका तुल्य प्रतिरोध 25 ओम आता है । इनको समान्तर क्रम में जोड़ने पर तुल्य प्रतिरोध 4 ओम आता है । प्रत्येक विद्युत प्रतिरोध का प्रतिरोध ज्ञात कीजिए ।
Answer» आपके घर में विद्युत कटौती के दौरान आवश्यक विद्युत आपूर्ति के लिए 12 वोल्ट / 150 ऐम्पियर-घण्टा की एक बैटरी लगायी गयी है । यदि विद्युत कटौती के दौरान आप इस पूर्णतया आवेशित बैटरी से एक 60 वाट का पंखा एवं एक 40 वाट का बल्ब प्रयोग में लाते हैं, तो यह कब तक कार्य करेंगे ? किसी भी अन्य ऊर्जा की हानि को नगण्य मानें ।

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