Electronics and Communication Engineering - Analog Electronics
Exercise : Analog Electronics - Section 4
- Analog Electronics - Section 11
- Analog Electronics - Section 21
- Analog Electronics - Section 20
- Analog Electronics - Section 19
- Analog Electronics - Section 18
- Analog Electronics - Section 17
- Analog Electronics - Section 16
- Analog Electronics - Section 15
- Analog Electronics - Section 14
- Analog Electronics - Section 13
- Analog Electronics - Section 12
- Analog Electronics - Section 1
- Analog Electronics - Section 10
- Analog Electronics - Section 9
- Analog Electronics - Section 8
- Analog Electronics - Section 7
- Analog Electronics - Section 6
- Analog Electronics - Section 5
- Analog Electronics - Section 4
- Analog Electronics - Section 3
- Analog Electronics - Section 2
31.
Assuming VCE sat = 0.2 V and β = 50, the minimum base current (IB) required to drive the transistor in the given figure to saturation is
Answer: Option
Explanation:
or = Ic = βIB and 
2.8 mA
32.
A half wave diode rectifier uses a diode having forward resistance of 50 ohms. The load resistance is also 50 ohms. Then the voltage regulation is
Answer: Option
Explanation:
No load output voltage = 
Output voltage at full load = 
.
33.
A Hartley oscillator is used for
Answer: Option
Explanation:
LC oscillators are used for radio frequencies.
34.
In Class C operation the collector current looks like
Answer: Option
Explanation:
Since collector current exists for less than 180°, it looks like narrow pulses.
35.
An op-amp integrating circuit uses
Answer: Option
Explanation:
Capacitor in feedback path provides integration.
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