Electronics and Communication Engineering - Analog Electronics

1. 

Pick the odd-one out

A. Hartley Oscillator
B. Colpitt oscillator
C. Clapp oscillator
D. Weinbridge oscillator

Answer: Option D

Explanation:

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2. 

In a CE amplifier the output coupling capacitor is short circuited. The dc collector voltage

A. will increase
B. may increase or decrease
C. will remain the same
D. will decrease

Answer: Option D

Explanation:

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3. 

A certain transistor has adc of 0.98 and a collectors leakage current of 5 μA. If IE = 1 mA, the collector current will be

A. 1.005 mA
B. 0.985 mA
C. 0.975 mA
D. 0.955 mA

Answer: Option B

Explanation:

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4. 

If 1.5% of the output of an amplifier is feedback positively to the input, the minimum gain required of the amplifier for oscillations to occur, is

A. 16.6
B. 44.4
C. 66.6
D. 75

Answer: Option C

Explanation:

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5. 

The use of a capacitor filter in a rectifier circuit gives satisfactory performance only when the load

A. current is high
B. current is low
C. voltage is high
D. voltage is low

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

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