Physics, 19.09.2019 01:30, jojojolie8570

For a van de graaff generator to acquire a charge on its surface what must happen?
a. positive and negative charges must be exactly equal in proportion to each other and remain so for a period of time.
b. an uncharged object must be placed nearby.
c. the metal surface must stay neutral for as long as possible.
d. positive and negative charges must be separated inside the device and one type of charge must be carried upwards to the metal sphere.

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 05:10, blondesaturn

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.

Answers: 3

continue

Physics, 22.06.2019 06:00, pinkyglitter2696

What are atoms of the same element with varying number of neutrons

Answers: 3

continue

Physics, 22.06.2019 10:30, zoebtharpe

An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.

Answers: 2

continue

Physics, 22.06.2019 10:30, jadenp23

Which two particles are found in the center of an atom

Answers: 1

continue

Do you know the correct answer?

For a van de graaff generator to acquire a charge on its surface what must happen?
a. positiv...