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A galvanometer gives full scale deflecti...

A galvanometer gives full scale deflection with `0.006 A` current. By connecting it to a `4990Omega` resistance, it can be converted into a voltmeter of range `30 V`. If connected to a `(2n)/249 Omega` resistance, it becomes an ammeter of range `0-1.5A`. the value of `n` is

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RESONANCE ENGLISH-CURRENT ELECTRICITY-Exrcies-3(PART-1)
  1. Figure shows three resistor configuration R1,R2 and R3 connected to ...

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  2. Statement I: In a meter bridge experiment, null point for an unknown r...

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  3. For the circuit shown in the figure

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  4. Consider a thin square sheet of side L and thicknest, made of a materi...

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  5. Incandescent bulbs are designed by keeping in mind that the resistance...

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  6. To verify Ohm's law, a student is provided with a test resistor R(T), ...

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  7. When two identical batteries of internal resistance 1Omega each are co...

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  8. Two batteries of different emfs and different internal resistances are...

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  9. For the resistance network shown in the figure, choose the correct opt...

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  10. Heater of an electric kettle is made of a wire of length L and diamete...

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  11. Two ideal batteries of emf V(1) and V(2) and three resistance R(1)R(2)...

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  12. A galvanometer gives full scale deflection with 0.006 A current. By co...

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  13. During an experiment with a metre bridge, the galvanometer shows a nul...

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  14. In an aluminum (Al) bar of square cross section, a square hole is dril...

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  15. In the following circuit, the current through the resistance R=(2Omega...

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  16. An infinite line charge of uniform electric charge density t=0 lies a...

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  17. Consider two identical galvanometers and two identical resistors with ...

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  18. Consider an evacuated cylindrical chamber of height h having rigid con...

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  19. Consider an evacuated cylindrical chamber of height h having rigid con...

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  20. A moving coil galvanometer has 50 turns and each turn has an area 2xx1...

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