GATE EC 2016 Question Paper (31-Jan-2016) (Shift 2)

The figure shows the band diagram of a Metal Oxide Semiconductor (MOS). The surface region of this MOS is in

The figure shows the I-V characteristics of a solar cell illuminated uniformly with solar light of power $100{\text{ mW/cm}}^2$. The solar cell has an area of $3{\text{ cm}}^2$ and a fill factor of $0.7$. The maximum efficiency (in %) of the device is ___________

The diodes D1 and D2 in the figure are ideal and the capacitors are identical. The product RC is very large compared to the time period of the ac voltage. Assuming that the diodes do not breakdown in the reverse bias, the output voltage $V_o$ (in volt) at the steady state is _________

Consider the circuit shown in the figure. Assuming $V_{BE1}=V_{EB2}=0.7$ volt, the value of the dc voltage $V_{C2}$ (in volt) is ____________

In the astable multivibrator circuit shown in the figure, the frequency of oscillation (in kHz) at the output pin 3 is _____________