ASTE 520 HW 21

Question 1

Qualitative Discussion of Specific Impulse in Electric Propulsion

Answer 1

Question 2

Main Limitations of Modern-Day Electric Propulsion Systems

Answer 2

Question 3

Why is Xenon the most commonly used electric propellant?

Answer 3

Question 4

Electric Propulsion - Potential Energy of An Ion (Equation)

Answer 4

Question 5

Electric Propulsion - Kinetic Energy of an Ion (Equation)

Answer 5

Question 6

1 electron-volt (eV) to Joules

Answer 6

Question 7

SI Unit of Energy / “Work” Term and Definition

Answer 7

Question 8

SI Unit of Charge - Name and Definition

Answer 8

Question 9

Electron-Volt (Units) Definition

Answer 9

Question 10

Elementary Charge Value

Answer 10

Question 11

Work (equation) for electric fields

Answer 11

Question 12

Ion Generation Rate (ions per second) of EP Thrusters

Answer 12

Question 13

EP Ion Current Equation

Answer 13

Question 14

Ampere Definition

Answer 14

Question 15

Atomic Current Equation

Answer 15

Question 16

General Form of the Power Equation

Answer 16

Question 17

Qualitative Meaning of Electric Power

Answer 17

Question 18

Qualitative Meaning of Electric Voltage (or “Potential Difference”)

Answer 18

Question 19

Qualitative Defintion of an Ion

Answer 19

Question 20

Qualitative Definition of a Proton

Answer 20

Question 21

Qualitative Definition of an Electron

Answer 21