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A resistor R and `2 muF` capacitor in series are connected through a 200 V direct supply. Acros the capacitor is a neon bulb that llights up at 120 V. Find the value of R to make the bulb light up 5 s after the switch has been closed. (Take `log_(10)`2.5 = 0.4)
A. |
`1.7xx10^5 Omega` |
B. |
`2.7xx10^6 Omega` |
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C. |
`3.3xx10^7 Omega` |
D. |
`1.3xx10^4 Omega` |