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A resistor R and 2muF capacitor in serie...

A resistor R and `2muF` capacitor in series is connected through a switch to 200V directly supply. Ascross the capacitor is a neon bulb that light up at 120 V. calculate the value of R to make to make the bulb light up 5s after the switch has been closed (take, `log_(10)2.5=0.4`)

A

`1.3xx10^(4) Omega`

B

`1.7 xx10^(5)Omega`

C

`2.7 xx 10^(6) Omega`

D

`3.3xx10^(7)Omega`

Text Solution

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The correct Answer is:
C
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RESONANCE ENGLISH-CAPACITANCE-Exercise - 3
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  14. Two capacitors C(1) and C(2) are charged to 120V and 200V, respectivel...

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  16. In the given circuit, charge Q(2) on the 2muF capacitor changes as C i...

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  17. A combination of capacitors is set up as shown in the figure. The magn...

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  18. A capacitance of 2 muF is required in an electrical circuit across a p...

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