MPSC Rajyaseva 2025 GS Paper 1 — Question 52
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खालील दिलेल्या रोधकांच्या नेटवर्क (नेटवर्क ऑफ रेजिस्टेन्स) मध्ये बॅटीमधून _________ विध्यूतधारा वाहिल. In the network of resistances shown below, Current through the battery will be _________.
1)1.5 A
2)3.5 A
3)4.0 A
4)1.0 A✓ Correct
The resistors form a Wheatstone bridge: 2 Ω and 4 Ω on one path, 1 Ω and 2 Ω on the other, with the 3 Ω across the middle. Since 2/1 = 4/2 the bridge is balanced, so no current flows through the 3 Ω. The two paths are 2 + 4 = 6 Ω and 1 + 2 = 3 Ω in parallel, giving 6 × 3 / 9 = 2 Ω. The current from the 2 V battery is 2 / 2 = 1.0 A.
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