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A 10 V -10 W lamp is to run on 220 V -50...

A 10 V -10 W lamp is to run on 220 V -50 Hz AC mains . What will be the required value of capacitance of a capacitor to run the lamp ?

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To solve the problem of determining the required capacitance to run a 10 V - 10 W lamp on a 220 V - 50 Hz AC mains, we will follow these steps: ### Step 1: Calculate the Current Drawn by the Lamp The power (P) of the lamp is given as 10 W and the voltage (V) across the lamp is 10 V. The current (I) can be calculated using the formula: \[ I = \frac{P}{V} \] ...
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MODERN PUBLICATION-ALTERNATING CURRENT -CHAPTER PRACTICE TEST
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  6. Why do we prefer a choke coil to a rhestat in controlling a.c.?

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  7. Why is electrical energy transmitted at high voltage from a distant po...

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  8. A step down transformer converts transmission line voltage from 2200 V...

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  9. The rms value of current in a 50 Hz AC source is 4 A. What will be the...

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  10. An electric heater is connected to DC and AC sources of equal voltage ...

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  11. Under which condition the current will lag behind the voltage? Explain...

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  12. When an ac source is connected to an ideal capacitor, show that the av...

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  13. Show that in the free oscillations of an LC circuit, the sum of energi...

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  14. Can the voltage drop across the inductor or capacitro in a series LCR ...

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  15. An alternating voltage given by V = 240 sin 314 t is connected across ...

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  16. What is power factor of an LCR circuit ? Explain on the basis of power...

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  17. (a) In a series LCR circuit connected across an AC source of varible f...

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