p121hw1solnssp10

# p121hw1solnssp10 - 12 Which of the following are...

This preview shows pages 1–10. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
12.) Which of the following are permissible amounts of charge for an object to have? Select all that are correct (and none that are incorrect) to receive credit. (You should assume the elementary charge value is exactly e=1.6·10 -19 C.) A neutral object is made out of an equal number of protons and electrons. The object becomes charged when there is an imbalance of the two. Both particles carry a charge of amount ‘e’ (elementary charge) with protons = +e and electrons = -e. We consider these indivisible a , so permissible net charges must be integer multiples of e. For the listed charge amounts, we take a ratio of them with e=1.6 · 10 -19 C and see if an integer results. If so, the charge is permissible; it can be achieved exactly by creating an imbalance of the appropriate number of electrons or protons. If the charge is negative, there must be more electrons than protons (usually, the electrons are added to the object). If the charge is positive, there must be more protons than electrons (usually, the electrons are removed from the object). (-1/2
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 03/19/2010 for the course PHYS 121 taught by Professor Koskelo during the Spring '10 term at Skyline College.

### Page1 / 10

p121hw1solnssp10 - 12 Which of the following are...

This preview shows document pages 1 - 10. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online