The logic gate equivalent to the given logic circuit is:

 The current $I_1$, flowing through the zener diode, in the figure below, is

In the given circuit, if the forward voltage drop for the diode is $0.5 \mathrm{V}$, the current will be

A sinusoidal voltage $E_0$ of peak value $200 \mathrm{V}$ is connected to a diode and a resistor $R$, as shown in the circuit, so that half wave rectification occurs. If the forward resistance of the diode is negligible compared to $R$, the rms voltage (in $\mathrm{volts}$) across $R$ is approximately

The current $i$ in the circuit given below, will be