Time Base Circuits – Exercise – 1

1. Output of sweep and time base generator will be :

(a) sawtooth waveform
(b) sinusoidal waveform
(c) both (a) & (b)
(d) neither (a) nor (b)

Answer
Answer : (a)
Explanation
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2. The sweep generator of a CRO is used to produce :

(a) sinusoidal voltage for the horizontal deflection of electron beam
(b) sawtooth voltage for the vertical deflection of electron beam
(c) sinusoidal voltage for the vertical deflection of electron beam
(d) sawtooth voltage for the horizontal deflection of electron beam

Answer
Answer : (d)
Explanation
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3. Bootstrap sweep circuit generally employs :

(a) Emitter Follower
(b) CE Amplifier
(c) CB Amplifier
(d) Tuned Amplifier

Answer
Answer : (a)
Explanation
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4. The time base generator in a CRO gives an output which is :

(a) low frequency sinusoidal
(b) high frequency sinusoidal
(c) low frequency rectangular
(d) high frequency sawtooth

Answer
Answer : (d)
Explanation
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5. In a time base generator, a constant current source (I) is used to drive a capacitance (C). The Output voltage across the capacitance as a function of time (t) is given by :

(a) (1/C)t
(b) (C/I)t
(c) I Ct
(d) t / IC

Answer
Answer : (a)
Explanation
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