What is the purpose of the electromagnetic field which surrounds a traveling-wave tube?

To accelerate the electron
To velocity modulate the electron beam
To keep the electrons from spreading out
To slow down the signal on the helix

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Answer: Option 3

Let'

4 views Answered 2022-09-01 13:21

Related Questions

When a wave is incident from the more dense into a less dense medium at an angle equal to or exceeding the critical angle, the wave suffers total internal __________ .?

1 Answers 11 Views

Theoretically electromagnetic radiation field strength varies in inverse proportion to the square of the distance, but when atmospheric attenuation effects and the absorption of the terrain are taken into account the attenuation can be as high as the inverse ___________ power of the distance.?

1 Answers 4 Views

When the current through an inductor decreases, the amount of energy stored in the electromagnetic field?

1 Answers 4 Views

When the current through an inductor is cut in half, the amount of energy stored in the electromagnetic field?

1 Answers 5 Views

Directions : In each of the following questions a statement is given, followed by two conclusions. Give answer : Statements : Wind is an inexhaustible source of energy and an aerogenerator can convert it into electricity. Though not much has been done in this field, the survey shows that there is vast potential for developing wind as alternative source of energy. Conclusions : I. Energy by wind is comparatively newly emerging field. II. The energy crisis can be dealt by exploring more in the field of aero-generation.?

1 Answers 6 Views

At what position is the input signal inserted into a traveling-wave tube?

1 Answers 4 Views

Which one among the following is not an electromagnetic wave?

1 Answers 4 Views

The electromagnetic coils on the neck of the picture tube or tubes which pull the electron beam from side to side and up and down are called a...?

1 Answers 5 Views

Which type of digitizer measures a wave traveling at the speed of sound?

1 Answers 4 Views

Which of the following circuit element stores energy in the electromagnetic field?

1 Answers 5 Views

এক্সাম দিয়ে মেধা যাচাই করুন

Job Preparation (1125)

Admission (754)

এসএসসি (10)

এইচএসসি (5)