× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
e
5
R
5
e
4
4
d
4
o
3
p
3
t
3
3
m
3
p
3
m
3
This topic contains 1 attachment.
Home Q & A Board Science-Related Homework Help Physics
New Topic  
ang1 ang1
wrote...
Posts: 8
Rep: 0 0
10 years ago
A conducting rod with a length of 25 cm is placed on a U-shaped metal wire that has a resistance R of 8.0 Ω as shown in the figure. The wire and the rod are placed in the plane of the paper. A constant magnetic field of strength 0.40 T is applied perpendicular into the paper. An applied force moves the rod to the right with a constant speed of 6.0 m/s. What is the magnitude and direction of the induced current in the wire?

17 mA clockwise
75 mA clockwise
75 mA counterclockwise
17 mA counterclockwise
52 mA clockwise
 Attached file 
Thumbnail(s):
You must login or register to gain access to this attachment.
Read 1090 times
1 Reply

Related Topics

Replies
wrote...
#1
Staff Member
Educator
10 years ago
emf = BLv

=0.4*0.25*6

=0.6 V

now current=V/R

=0.6/8

=0.075 A

the direction is anti clockwise
Mastering in Nutritional Biology
Tralalalala Slight Smile
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  940 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 244
  
 144
  
 351
Your Opinion
Who's your favorite biologist?
Votes: 587
Previous poll results: What percentage of nature vs. nurture dictates human intelligence?