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Question 7.5: For the multivibrator shown in Fig. 7.13(a), VCC = 20 V, VBB......

For the multivibrator shown in Fig. 7.13(a),\ V_{CC} = 20 V,\ V_{BB} = 10 V,\ R_{1} = R_{2} = R = 10 kΩ,\ C_{1} = C_{2} = C = 0.01μF. Find the time period and the frequency.

fig 7.13 a
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\ T = 2RC  ln \left(1 + \frac{V_{CC}}{V_{BB} } \right) = 2 × 10 × 10^{3} × 0.01 × 10^{−6}  ln \left(1 + \frac{20}{10} \right) = 0.22 ms

\ f = \frac{1}{T} = \frac{ 10^{3}}{0.22} = 4.54 kHz

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