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In TV transmitter, visual exciter may consist of
| |
A. | 1, 2 and 3 [Wrong Answer] |
B. | 2, 3 and 4 [Wrong Answer] |
C. | 1, 2, 3 and 4 [Wrong Answer] |
D. | 1, 2, 3, 4 and 5 [Correct Answer] |
View Answer
Explanation:-
Answer : D Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
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⇒ It is required to trace the output characteristics of a CE bipolar transistor on a CRO screen. The proper method is
apply the voltage drop across collector resistance to Y input, disconnect sweep generator and apply V_{CE} to X input
apply voltage drop across collector resistance to Y input
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apply V_{CE} to Y input, disconnect the sweep generator and apply voltage drop across collector resistance to X input
⇒ A two branch parallel tuned circuits has a coil of resistance R and inductance L in one branch and capacitance C in the second branch. The bandwidth is 200 radians/sec. A load of resistance R_{L} is connected in parallel. The new bandwidth will be
200 rad/sec
more than 200 rad/sec
less than 200 rad/sec
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⇒ The commutation method in an inverter, is
line commutation
forced commutation
either (a) or (b)
none of the above
⇒ Self bias is an example of __________ feedback that tends to stabilize the drain current against changes in temperature and JFET replacement.
variable
low
negative
positive
⇒ In a JK master slave flip flop race condition does not occur.
TRUE
FALSE
⇒ Find resistance R_{B} to bring transistor to threshold of saturation (V_{CB} = 0), V_{BE} = 0.7 V, a =
1.5 KΩ
15 KΩ
10 KΩ
1 KΩ
⇒ Find R_{L} for maximum power trans
3 Ω
1.125 Ω
4.1785 Ω
None of these
⇒ The voltage across the secondary of the transformer in a half wave rectifier with a shunt capacitor filter is 50 volts. The maximum voltage that will occur on the reverse biased diode will be
100 V
88 V
50 V
25 V
⇒ Electric lines of force do not cross each other because
the lines of force mutually repel each other
the lines of force emanate from a point charge
the tangent to the line of force gives the direction of E and if they cross two tangents for E which is not possible
none of the above
⇒ A wave is propagated in a waveguide at frequency of 9 GHz and separation is 2 cm between walls Calculate group velocity for dominant mode.
1.8 x 10^{8} m/sec
5 x 10^{8} m/sec
3 x 10^{8} m/sec
1.5 x 10^{8} m/sec
⇒ CATV stands for
Common Antenna Television
Community Antenna Television
Cable Antenna Television
Channel Antenna Television