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1.
Assertion (A): The impedance of a matched load is equal to characteristic impedance of line.
Reason (R): A matched termination absorbs all the power incident on it.
Reason (R): A matched termination absorbs all the power incident on it.
2.
Skin effect is more pronounced at high frequencies.
3.
Assertion (A): The phenomenon of differential mobility is called transferred electron effect.
Reason (R): GaAs exhibits transferred electron effect.
Reason (R): GaAs exhibits transferred electron effect.
4.
Which of the following devices uses a helix?
5.
Which of the following parameters is negligible in transmission lines?
6.
The width of a radio beam from a 1 m diameter parabolic antenna at 10 GHz is about
7.
The diagram to show distance time history of electrons in klystron amplifier is called
8.
Impedance level of Impatt diodes is generally lower than that of Gunn diodes
9.
A quarter wave line open circuited at far end behaves as
10.
Assertion (A): A backward wave oscillator has an internal positive feedback.
Reason (R): A positive feedback is necessary for sustained oscillations.
Reason (R): A positive feedback is necessary for sustained oscillations.