1
GATE EE 2003
+2
-0.6
Assuming the operational amplifier to be ideal, the gain $${V_{out}}/{V_{in}}$$ for the circuit shown in figure
A
$$-1$$
B
$$-20$$
C
$$-100$$
D
$$-120$$
2
GATE EE 2002
+2
-0.6
The output voltage$$\left( {{V_0}} \right)$$ of the Schmitt trigger shown in figure swings between $$+15V$$ and $$–15V.$$ Assume that the operational amplifier is ideal. The output will change from $$+15V$$ to $$–15V$$ when the instantaneous value of the input sine wave is
A
$$5$$ $$V$$ in the positive slope only
B
$$5$$ $$V$$ in the negative slope only
C
$$5$$ $$V$$ in the positive and negative slopes
D
$$3$$ $$V$$ in the positive and negative slopes
3
GATE EE 2001
+2
-0.6
An op-amp, having a slew rate of $$62.8$$ $$V/\mu \,$$sec, is connected in a voltage follower configuration. If the maximum amplitude of the input sinusoidal is $$10$$ Volts. Then the minimum frequency at which the slew rate limited distortion would set in at the output is
A
$$1$$ $$MHz$$
B
$$6.28$$ $$MHz$$
C
$$10$$ $$MHz$$
D
$$62.8$$ $$MHz$$
4
GATE EE 2001
+2
-0.6
For the oscillator circuit shown in figure, the expression for the time period of oscillations can be given by (where $$\tau = RC$$ )
A
$$\tau \,\ln \,3$$
B
$$2\tau \,\ln \,3$$
C
$$\tau \,\ln \,2$$
D
$$2\tau \,\ln \,2$$
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