When the input signal is fed at arm 'b' of a Magic-T, then which of the following statements regarding the output of Magic-T is CORRECT? (i) Output at arm 'a' & arm 'c' are out of phase (if) Output at arm 'd' depends on the potential existing at the center of junction joining 'b' & 'd' (ifi) Output at arm 'd' depends on the potential existing at the edges of junction joining 'b' & 'd' 4. [A] (1). (ii) [D] (1), (ii), (ii) [C] (1), (i) In two cavity klystron, the cavity used to collect the demodulated/amplified signal is [B] (ii), (ii) [A] Drift Space [B] Buncher Cavity [C] Catcher Cavity [D] Focusing electrodes 6. offers a low loss, distortionless transmission line. [A] Group velocity [B] Phase velocity [C] Guide wavelength [DI Dominant Mode 5

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ce/conte
[A] Zero or less
[B] Unity or less
[C] Infinite
[D] Zero
When the input signal is fed at arm 'b' of a Magic-T, then which of the following statements regarding
the output of Magic-T is CORRECT?
(i) Output at arm 'a' & arm 'c' are out of phase
4.
(i1) Output at arm 'd' depends on the potential existing at the center of junction joining 'b' & 'd'
(iii) Output at arm 'd' depends on the potential existing at the edges of junction joining 'b' & 'd'
[A] (1), (ii)
[B] (ii), (ii)
[C] (1), (i)
In two cavity klystron, the cavity used to collect the demodulated/amplified signal is
[D] (i), (ii), (iii)
[A] Drift Space
[B] Buncher Cavity
[C] Catcher Cavity
[D] Focusing electrodes
6.
offers a low loss, distortionless transmission line.
[A] Group velocity
[B] Phase velocity
[C] Guide wavelength
[D] Dominant Mode
7
is used in high powered radar and communication systems
(i) Magic T
(ii) Hybrid ring
(iii) Directional Coupler
(iv) E & H type junctions
[A] Both (i) & (ii) are correct
[B] Both (ii) & (iii) are correct
[C] Both (iii) & (iv) are correct
The open circuit impedance of the transmission line is given by
[D] Both (iv) & (i) are correct
[A] Z» = j Zo tan BI
[B] Z» = - j Zo tan Bl
[C] Z = j Zo cot Bl
[D] Z = -j Zo cot BI
5
Transcribed Image Text:ce/conte [A] Zero or less [B] Unity or less [C] Infinite [D] Zero When the input signal is fed at arm 'b' of a Magic-T, then which of the following statements regarding the output of Magic-T is CORRECT? (i) Output at arm 'a' & arm 'c' are out of phase 4. (i1) Output at arm 'd' depends on the potential existing at the center of junction joining 'b' & 'd' (iii) Output at arm 'd' depends on the potential existing at the edges of junction joining 'b' & 'd' [A] (1), (ii) [B] (ii), (ii) [C] (1), (i) In two cavity klystron, the cavity used to collect the demodulated/amplified signal is [D] (i), (ii), (iii) [A] Drift Space [B] Buncher Cavity [C] Catcher Cavity [D] Focusing electrodes 6. offers a low loss, distortionless transmission line. [A] Group velocity [B] Phase velocity [C] Guide wavelength [D] Dominant Mode 7 is used in high powered radar and communication systems (i) Magic T (ii) Hybrid ring (iii) Directional Coupler (iv) E & H type junctions [A] Both (i) & (ii) are correct [B] Both (ii) & (iii) are correct [C] Both (iii) & (iv) are correct The open circuit impedance of the transmission line is given by [D] Both (iv) & (i) are correct [A] Z» = j Zo tan BI [B] Z» = - j Zo tan Bl [C] Z = j Zo cot Bl [D] Z = -j Zo cot BI 5
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