⟹ Frequency deviation = 3 . (AM Bandwidth) = 6 fm
and ?= 6 is given in (d) only.
?c + n ?m = (1008 x 103)2p
⟹ 2p x 106 + n. 4p x 103 = (1008 x 103).2p
⟹ n = 4
So, ? = 6, n = 4 hence answer is 5j4(6).
DO 52 N = 1, 10, 3
The number of DO loop executions in the above statement is
Options
- A. 1
- B. 10
- C. 3
- D. 4
Discuss
Correct Answer: 4
Explanation:
Do statement is executed when N = 1, 4, 7, 10, i.e., a total of 4 times.
- 7. In a single phase semiconverter feeding a highly inductive load, the load current is
Options
- A. sinusoidal
- B. nearly constant
- C. absolutely constant
- D. rectangular
Discuss
Correct Answer: nearly constant
- 8. If ton and toff are the turn on and turn off times of a thyristor, then
Options
- A. ton and toff are almost equal
- B. ton >> toff
- C. toff >> ton
- D. ton is about twice toff
Discuss
Correct Answer: toff >> ton
Explanation:
Turn on time is less than 3 ?s while turn off time is between 10-300 ?s.
- 9. Which inverter circuit uses coupled inductors?
Options
- A. Modified McMurray full bridge inverter
- B. McMurray Bedford half bridge inverter
- C. Modified McMurray Bedford half bridge inverter
- D. Both (b) and (c)
Discuss
Correct Answer: Both (b) and (c)
- 10. If there are no permanent dipoles in a dielectric material, the dielectric constant is independent of temperature.
Options
- A. True
- B. False
Discuss
Correct Answer: True
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