List of top Electrical Circuits Questions on Zener Diodes asked in GATE BM

In the figure below, the diode is ideal. The current reading shown in the ammeter is ________ A. Give your answer rounded off to the nearest integer.

Which of the following waveforms represents the output V. of the circuit given below? The Zener diode used has a Zener breakdown voltage of 1 V and can be assumed ideal while in forward bias.