1
GATE ECE 2016 Set 1
Numerical
+2
-0
An ideal opamp has voltage source V1, V3, V5, ......, VN-1, connected to the non- inverting input and V2, V4, V6, .....VN connected to the inverting input as shown in the figure below (+VCC= 15 volt, -VCC = -15 volt). The voltage V1, V2, V3,V4, V5, V6 ....... are 1, -1/2, 1/3, -1/4, 1/5, -1/6, .... volt, respectively. As N approaches infinity, the output voltage (in volt) is _______
2
GATE ECE 2016 Set 1
Numerical
+2
-0
A p-i-n photo diode of responsivity 0.8A/W is connected to the inverting input of an ideal opamp as shown in the figure, +VCC = 15V, - VCC = -15V, Load resistor RL = 10 k$$\Omega$$ . If 10$$\mu$$W of power is incident on the photodiode, then the value of the photocurrent (in $$\mu$$A) through the load is _____.
3
GATE ECE 2015 Set 2
Numerical
+2
-0
For the voltage regulator circuit shown, the input voltage (Vin) is 20V $$\pm$$ 20% and the regulated output voltage (Vout) is 10 V. Assume the opamp to be ideal . For a load RL drawing 200 mA, the maximum power dissipation in Q1 (in Watts) is ______.
4
GATE ECE 2015 Set 2
Numerical
+2
-0
Assuming that the op-amp in the circuit shown below is ideal, the output voltage V0 (in volts)