Resistor R₁ in the circuit below has been adjusted so that I₁ = 1 mA. The bipolar transistor Q1 and Q2 are perfectly matched and have very high current gain, so their base currents are negligible. The supply voltage V_cc is 6 V. The thermal voltage kT/q is 26 mV.

The value of R₂ (in $$\Omega $$ ) for which I₂ = 100 $$\mu {\rm A}$$ is ________.

Consider the circuit shown in the figure. Assuming V_BE1 = V_EB2 = 0.7 volt, value of the dc voltage V_c2 (in volt) is _______

If the emitter resistance in a common-emitter voltage amplifier is not bypassed, it will

In the circuit shown, the PNP transistor has $$\left|{\mathrm V}_\mathrm{BE}\right|=0.7\;\mathrm V$$ and β = 50. Assume that R_B = 100 kΩ. For V₀ to be 5 V, the value of R_C ( in kΩ) is _____________.