1
GATE EE 2002
MCQ (Single Correct Answer)
+1
-0.3
The cut in voltage of both Zener diode $${D_z}$$ and diode $$D$$ shown in Figure is $$0.7$$ $$V,$$ while break down voltage of the zener is $$3.3$$ $$V$$ and reverse breakdown voltage of $$D$$ is $$50$$ $$V.$$ the other parameters can be assumed to be the same as those of an ideal diode. The values of the peak output voltage ($${V_0}$$) are
A
$$3.3$$ $$V$$ in the positive half cycle and $$1.4$$ $$V$$ in the negative half cycle.
B
$$4$$ $$V$$ in the positive half cycle and 5 V in the negative half cycle.
C
$$3.3$$ $$V$$ in both positive and negative half cycle.
D
$$4$$ $$V$$ in both positive and negative half cycle.
2
GATE EE 2002
MCQ (Single Correct Answer)
+1
-0.3
The forward resistance of the diode shown in figure is $$5\Omega$$ and the remaining parameters are same as those of ideal diode. The $$DC$$ component of the source current is
A
$${{{V_m}} \over {50\pi }}$$
B
$${{{V_m}} \over {50\pi \sqrt 2 }}$$
C
$${{{V_m}} \over {100\pi \sqrt 2 }}$$
D
$${{2{V_m}} \over {50\pi }}$$
3
GATE EE 1999
MCQ (Single Correct Answer)
+1
-0.3
As temperature is increased, the voltage across a diode carrying a constant current.
A
Increases
B
Decreases
C
Remains Constant
D
May increase or decrease depending upon the doping levels in the junction
4
GATE EE 1999
MCQ (Single Correct Answer)
+1
-0.3
The colour code of a $$1k\Omega$$ resistance is
A
black, brown, red.
B
red, brown, brown.
C
brown, black, red.
D
black, black, red.
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