1
GATE ECE 2014 Set 1
Numerical
+2
-0
In the voltage regulator circuit shown in the figure, the op - amp is ideal. The BJT has VBE = 0.7 V and $$\beta$$ = 100, and the Zener voltage is 4.7 V. For a regulated output of 9 V, the value of R (in $$\Omega$$) is ______
2
GATE ECE 2014 Set 1
+2
-0.6
In the circuit shown, the op-amp has finite input impedance, infinite voltage gain and zero input offset voltage. The output voltage Vout is
A
$$- {I_2}\left( {{R_1} + {R_2}} \right)$$
B
$${I_2}{R_2}$$
C
$${I_1}{R_2}$$
D
$$- {I_1}\left( {{R_1} + {R_2}} \right)$$
3
GATE ECE 2013
+2
-0.6
In the circuit shown below the op-amps are ideal. Then Vout in Volts is
A
4
B
6
C
8
D
10
4
GATE ECE 2012
+2
-0.6
The circuit shown is a
A
low pass filter with
$${f_3}dB = \,{1 \over {\left( {{R_1} + {R_2}} \right)C}}rad/s$$
B
high pass filter with
$${f_3}dB = \,{1 \over {{R_1}C}}rad/s$$
C
low pass filter with
$${f_3}dB = {1 \over {{R_1}C}}rad/s$$
D
high pass filter with
$${f_3}dB = {1 \over {\left( {{R_1} + {R_2}} \right)C}}rad/s$$
EXAM MAP
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