Q1. the transit time of the current carrier through the channel of an FET decides its ______ characteristics.
(A) on/off
(B) dynamic
(C) load
(D) switching

Q2. In thyristers, holding current is
(A) more than latching current
(B) very large
(C) very small
(D) less than latching current

Q3. Efficiency of a full wave rectifier is
(A) 50.00%
(B) 100.00%
(C) 91.40%
(D) 81.20%

Q4. The emitter of a transitor is doped
(A) lightly
(B) moderately
(C) heavily
(D) none of these

Q5. Internal resistance of ideal voltage source is
(A) infinite
(B) can take any value
(C) depends on load resistor
(D) 0

Q6. Colpitt oscillators are for
(A) AF
(B) RF
(C) Both
(D) None

Q7. Oscillators employ
(A) negative feedback
(B) no feedback
(C) positive feedback
(D) may be either of the 2

Q8. The IC NE/SE 566 is
(A) Schmitt Trigger
(B) IF Amplifier
(C) Power Amplifier
(D) VCO

Q9. With increase in length of conductor,its resistance
(A) increases
(B) decreases
(C) remains same
(D) becomes zero

Q10. Internal resistance of ideal current source is
(A) 0
(B) not known
(C) infinite
(D) depends on applivation

Q11. Efficiency in maximum power transfer is
(A) 50.00%
(B) 100.00%
(C) 30.00%
(D) 75.00%

Q12. Notch filter is
(A) BPF
(B) LPF
(C) HPF
(D) narrowband reject filter

Q13. The lowest frequency of LPF is
(A) 1 Hz
(B) 0 hz
(C) 10 hz
(D) depends on fc

Q14. The zero level detector is application of
(A) differentiator
(B) summing amplifier
(C) integrator
(D) comparator

Q15. A comparator with hysteresis
(A) has 1 trigger point
(B) has 2 trigger points
(C) has variable trigger point
(D) is like magnetic circuit

Q16. Instrumentation Amplifiers are used primarily in
(A) Test equipment
(B) High noise environment
(C) Medical equipment
(D) Filter circuits

Q17. The control signal for sample and hold is applied to
(A) Diode
(B) Triac
(C) MOS
(D) SCR

Q18. For a step input ,output of integrator is
(A) Pulse
(B) Ramp
(C) Triangular wave
(D) Spike

Q19. The input circuit of CB amplifier is
(A) emitter base circuit
(B) emitter collector circuit
(C) base collector circuit
(D) collector base emitter circuit

Q20. feedback regulator s are used to provide
(A) high load current
(B) low load current
(C) medium load current
(D) very low load current

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