For the data in Q. 35 and if capacitor used is 100 Pf then

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For the data in Q. 35 and if capacitor used is 100 Pf then R—

1. 0·17 × 10¹³ Ω
2. 0·212 × 10¹¹ Ω
3. 17 × 10¹³ Ω
4. None of these

Correct Option: D

We know that
Time constant τ = RC
or

R =	τ	=	0.212 × 10⁻³	= 0.212 × 10⁷ Ω
	c		100 × 10 ⁻¹²