Physics, 21.06.2020 04:57 Shayleechase
A current-carrying wire is bent into a circular loop of radius R and lies in an xy plane. A uniform external magnetic field B in the z direction exists throughout the plane of the loop. The current has the magnitude of II and it is deirected counterclockwise when observing from positive z axis. What is the magnetic force exerted by the external field on the loop? Express your answer in terms of some or all of the variables I, R, and B.
Answers: 1
Physics, 22.06.2019 11:30
(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?
Answers: 3
Physics, 22.06.2019 17:30
Does heating a metal wire increase or decrease its electrical resistance? why?
Answers: 1
Physics, 22.06.2019 22:00
Which best term to describe a chemical reaction that absorbs energy from its surroundings? a.thermal conductor b.thermal insulator c.endothermic d.exothermic
Answers: 1
A current-carrying wire is bent into a circular loop of radius R and lies in an xy plane. A uniform...
Physics, 30.01.2020 13:49
Biology, 30.01.2020 13:49
Mathematics, 30.01.2020 13:49
Chemistry, 30.01.2020 13:49
Mathematics, 30.01.2020 13:49
Arts, 30.01.2020 13:49