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in Physics by (93.6k points)
जब 45 ओम के एक बाह्य प्रतिरोध को एक बैटरी के टर्मिनलो से जोड़ा जाता है तो इसमें `0.3` ऐम्पियर की धारा बहती है । जब प्रतिरोध घटाकर 25 ओम कर दिया जाता है तो धारा बढ़कर `0.5` ऐम्पियर हो जाती है । बैटरी का विधुत वाहक बल तथा आंतरिक प्रतिरोध ज्ञात कीजिए ।

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