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Q#1
Oscillators
GATE EC 2016
NAT
+2 marks
-0 marks
In the op-amp circuit shown, the Zener diodes 
and 
clamp the output voltage 
to +5 V or −5 V. The switch S is initially closed and is opened at time
.
The time 
(in seconds) at which 
changes state is ____.
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