1
AIEEE 2010
MCQ (Single Correct Answer)
+4
-1
The combination of gates shown below yields AIEEE 2010 Physics - Semiconductor Question 174 English
A
OR gate
B
NOT gate
C
XOR gate
D
NAND gate
2
AIEEE 2009
MCQ (Single Correct Answer)
+4
-1
The logic circuit shown below has the input waveforms $$'A'$$ and $$'B'$$ as shown. Pick out the correct output waveform. AIEEE 2009 Physics - Semiconductor Question 176 English 1 AIEEE 2009 Physics - Semiconductor Question 176 English 2

Output is

A
AIEEE 2009 Physics - Semiconductor Question 176 English Option 1
B
AIEEE 2009 Physics - Semiconductor Question 176 English Option 2
C
AIEEE 2009 Physics - Semiconductor Question 176 English Option 3
D
AIEEE 2009 Physics - Semiconductor Question 176 English Option 4
3
AIEEE 2009
MCQ (Single Correct Answer)
+4
-1
A $$p$$-$$n$$ junction $$(D)$$ shown in the figure can act as a rectifier. An alternating current source $$(V)$$ is connected in the circuit. AIEEE 2009 Physics - Semiconductor Question 175 English

The current $$(I)$$ in the resistor $$(R)$$ can be shown by :

A
AIEEE 2009 Physics - Semiconductor Question 175 English Option 1
B
AIEEE 2009 Physics - Semiconductor Question 175 English Option 2
C
AIEEE 2009 Physics - Semiconductor Question 175 English Option 3
D
AIEEE 2009 Physics - Semiconductor Question 175 English Option 4
4
AIEEE 2008
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
A working transistor with its three legs marked $$P,Q$$ and $$R$$ is tested using a multi-meter. No conduction is found between $$P$$ and $$Q$$. By connecting the common (negative) terminal of the multi-meter to $$R$$ and the other (positive) terminal to $$P$$ or $$Q,$$ some resistance is seen on the multi-meter. Which of the following is true for the transistor?
A
It is an $$npn$$ transistor with $$R$$ as base
B
It is an $$pnp$$ transistor with $$R$$ as collector
C
It is an $$pnp$$ transistor with $$R$$ as emitter
D
It is an $$npn$$ transistor with $$R$$ as collector
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