1
GATE ECE 1994
MCQ (Single Correct Answer)
+1
-0.3
For a dipole antenna
A
the radiation intensity is maximum along the normal to the dipole axis
B
the current distribution along its length is uniform irrespective of the length
C
the effective length equals its physical length
D
the input impedance is independent of the location of the feed-point
2
GATE ECE 1994
True or False
+1
-0
A p-type silicon sample has a higher conductivity compared to an n-type sample having the same dopant concentration.
A
TRUE
B
FALSE
3
GATE ECE 1994
MCQ (Single Correct Answer)
+1
-0.3
A small concentration of minority carries is injected into a homogeneous semiconductor crystal at one point. An electric field of 10 V/cm is applied across the crystal and this moves the minority carriers a distance of 1 cm is 20 $$\mu$$ sec. The mobility (in cm2/volt-sec) will be
A
1,000
B
2,000
C
5,000
D
500,000
4
GATE ECE 1994
True or False
+1
-0
Channel current is reduced on application of a more positive voltage to the gate of a depletion mode n-channel MOSFET.
A
TRUE
B
FALSE
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