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6.What should be the resistance R1,R2,R3 of the rheostat sections for the current through the ammeter A of resistance of 30 ohm to increase by one ampere as the rheostat arm is moved from Shud 1to shud 2 to shud 3 and shud 4. The circuit is connected to a source of emf 120V and internal resistance is zero ohm. Find value of R1,R2,R3. |
| Answer» 6.What should be the resistance R1,R2,R3 of the rheostat sections for the current through the ammeter A of resistance of 30 ohm to increase by one ampere as the rheostat arm is moved from Shud 1to shud 2 to shud 3 and shud 4. The circuit is connected to a source of emf 120V and internal resistance is zero ohm. Find value of R1,R2,R3. | |