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| Q.138 | 0.02 mm के व्यास वाले तार से एक धातु-फिलामेंट लैंप बनाया जाता है, जिसका फिलामेंट 240 V है। यदि लैंप 2420°C के फिलामेंट तापमान पर 60 वाट प्रकाश फैलाता है, तो लैंप का प्रतिरोध ज्ञात कीजिए। | |
| Ans | 1. 960 Ω | |
| 2. 96 Ω | ||
| 3. 48 Ω | ||
| 4. 480 Ω |
Correct Ans Provided: 1
