1
GATE EE 2015 Set 2
MCQ (Single Correct Answer)
+1
-0.3
In the following circuit, the input voltage $${V_{in}}$$ is $$100\sin \left( {100\pi t} \right).$$ For $$100\pi RC = 50,$$ the average voltage across $$R$$ (in volts) under steady-state is nearest to
A
$$100$$
B
$$31.8$$
C
$$200$$
D
$$63.6$$
2
GATE EE 2015 Set 2
MCQ (Single Correct Answer)
+1
-0.3
When a bipolar junction transistor is operating in the saturation mode, which one of the following statements is TRUE about the state of its collector-base (CB) and the base-emitter (BE) junctions?
A
The CB junction is forward biased and the BE junction is reverse biased.
B
The CB junction is reverse biased and the BE junction is forward biased.
C
Both the CB and BE junctions are forward biased.
D
Both the CB and BE junctions are reverse biased.
3
GATE EE 2015 Set 2
Numerical
+1
-0
In the following circuit, the transistor is in active mode and $${V_C} = 2V.$$ To get $${V_C} = 4V,$$ we replace $${R_C}$$ with $${R_C}.$$ Then the ratio $$R{'_C}/{R_C}$$ is __________.
Your input ____
4
GATE EE 2015 Set 2
MCQ (Single Correct Answer)
+1
-0.3
The filters $${F_1}$$ and $${F_2}$$ having characteristics as shown in figures $$(a)$$ and $$(b)$$ are connected as shown in Figure $$(c).$$

The cut-off frequencies of $$F1$$ and $$F2$$ are $${f_1}$$ and $${f_2}$$ respectively. If $${f_1}\, < \,{f_2},$$ the resultant circuit exhibits the characteristic of a

A
Band-pass filter
B
Band-stop filter
C
All pass filter
D
High-Q filter
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