Examine the scenario.

A stream of negatively-charged particles is moving to the right in a magnetic field. The particles experience a force downward.

Which situation(s) would result in the particle stream experiencing an upward force?

(Select all that apply.) (I think you have to select 2?)

a) using uncharged particles moving to the right

b) using positively-charged particles moving to the left

c) using positively-charged particles moving to the right

d) using negatively-charged particles moving to the left

C and D

Explanation:

From the right-hand rule, positively charged particles moving to the left in a perpendicular magnetic field, will experience an upward force. Also, negatively charged particles moving to the left will experience an upward force. This is because, the  direction of the force is irrespective of the sign of the charge but on its velocity.

nec chapter 5 contains

c. information on special occupancy areas

nec chapter 6 covers

a. special equipment

which of the following rules contain the words shall or shall not and must be adhered to?

b. mandatory rules

which of the following rules identify actions that are allowed but not required and typically cover options or alternative methods?

c. optional rules

which of the following serves as the introduction to the nec and provides an overview of the book?

a. nec article 90

organizations that test products for safety are

c. nrtls

the nec is published by the

a national fire protection association

the nec is divided into

b. 9 chapters

the nec provides informative annexes for

c. informational materials and examples

two terms from nec article 100 that trainees should become familiar with are

b. labeled and listed

explanation:

b.

hope this : )