What device is used on a power tool's universal motor to provide a burnout-proof motor?
a. current relay
b. circuit breaker
c. thermal protector
d. fuse

Julia would be observing a. static electricity was caused by her sweater rubbing against her shirt and transferring electrons. she didn't touch anything metal, so that would cancel out b.she most likely didn't rub her sweater against her hair either, so that cancels out c.she also didn't scoot across the carpet while trying to take her sweater off, that cancels out d.so that leaves a.a. is correct.

An atom's smaller negative particles are at a distance from the central positive particles, so the negative particles are easier to move. 

Ithink it is a. but i'm not 100 percent sure.