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Q1:

Consider the Schmitt trigger circuit shown below. A triangular wave which goes from - 12 V to 12 V is applied to the inverting input of the op-amp. Assume that the output of the op-amp moves from +15 V to -15 V. The voltage at the non-inverting switches between

A -12 V and +12 V

B -7.5 V and +7.5 V

C -5 V and +5 V

D 0 V and 5 V

ANS:B - -7.5 V and +7.5 V

V0 is switching between + 15 to - 150 Thus voltage at non-inverting input switches between , 7.5 to - 7.5 .



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