1
JEE Main 2013 (Offline)
+4
-1
A diode detector is used to detect an amplitude modulated wave of $$60\%$$ modulation by using a condenser of capacity $$250$$ picofarad in parallel with a load resistance $$100$$ kilo $$ohm.$$ Find the maximum modulated frequency which could be detected by it.
A
$$10.62$$ $$MHz$$
B
$$10.62$$ $$kHz$$
C
$$5.31$$ $$MHz$$
D
$$5.31$$ $$kHz$$
2
JEE Main 2013 (Offline)
+4
-1
The $${\rm I}$$-$$V$$ characteristic of an $$LED$$ is
A
B
C
D
3
AIEEE 2012
+4
-1
Truth table for system of four $$NAND$$ gates as shown in figure is:
A
B
C
D
4
AIEEE 2010
+4
-1
The combination of gates shown below yields
A
OR gate
B
NOT gate
C
XOR gate
D
NAND gate
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