1
GATE EE 2013
+2
-0.6
In the circuit shown below, the knee current of the ideal Zener diode is $$10$$ $$mA.$$ To maintain $$5 V$$ across $${R_L}$$, the minimum value of $${R_L}$$ in $$\Omega$$ and the minimum power rating of the Zener diode in $$mW$$ respectively are A
$$125$$ and $$125$$
B
$$125$$ and $$250$$
C
$$250$$ and $$125$$
D
$$250$$ and $$250$$
2
GATE EE 2013
+2
-0.6
A voltage $$1000\sin \omega t$$ Volts is applied across $$YZ.$$ Assuming ideal diodes, the voltage measured across $$WX$$ in Volts is A
$$\sin \omega t$$
B
$$\left( {\sin \omega t + \left| {\sin \omega t} \right|} \right)/2$$
C
$$\left( {\sin \omega t - \left| {\sin \omega t} \right|} \right)/2$$
D
$$0$$ for all $$t$$
3
GATE EE 2011
+2
-0.6
A clipper Circuit is shown below Assuming forward voltage drops of the diodes to be $$0.7V,$$ the input-output transfer characteristics of the circuit is

A B C D 4
GATE EE 2008
+2
-0.6
In the voltage doubler circuit shown in figure, the switch $$' S '$$ is closed at $$t=0$$. Assuming diodes $${D_1}$$ & $${D_2}$$ to be ideal, load resistance to be infinite and initial capacitor voltages to be zero, the steady state voltage across capacitors $${C_1}$$ & $${C_2}$$ will be A
$${V_{c1}} = 10V,\,\,{V_{c2}} = 5V$$
B
$${V_{c1}} = 10V,\,\,{C_{c2}} = -5V$$
C
$${V_{c1}} = 5V,\,\,{V_{c2}} = 10V$$
D
$${V_{c1}} = 5V,\,\,{V_{c2}} = -10V$$
GATE EE Subjects
Electromagnetic Fields
Signals and Systems
Engineering Mathematics
General Aptitude
Power Electronics
Power System Analysis
Analog Electronics
Control Systems
Digital Electronics
Electrical Machines
Electric Circuits
Electrical and Electronics Measurement
EXAM MAP
Joint Entrance Examination