Question

A square loop of wire, 15 cm on a side, carries a current of 0.50 A. It stands vertically, such that its normal is parallel to a uniform horizontal magnetic field that exists in a region in which half of the loop is immersed, with the other half below the region. The mass per unit length of the wire is 5.6 g/m. What is the strength of the magnetic field if the loop simply hangs there?

Answer 1

this is physics , i need you equations

Answer 2

yes it's physics, but in physics part there is no one help in anything :S

Answer 3

sorry dont know the flux equation

Answer 4

is it an integral??

Answer 5

it's ok :)

Answer 6

i guess you might have luck here, do you know a website that has this ?

Answer 7

yes

Answer 8

mcgraw-hill.com

Answer 9

Once the switch is closed, the line voltage is applied across
the bulb. As the voltage is applied across the cold filament
when it is first turned on, the resistance of the filament is
low, the current is high, and a relatively large amount of
power is delivered to the bulb. As the filament warms, its
resistance rises and the current decreases. As a result, the
power delivered to the bulb decreases. The large current
spike at the beginning of the bulb’s operation is the reason
that lightbulbs often fail just after they are turned on.

Answer 10

what page bro?

Answer 11

that was interesting fact i found when i searched your question

Answer 12

this question from assignment

Answer 13

so i didn't know what page but it relate to ebook on this site

Answer 14

they have a whole physics book?? online , wow

Answer 15

yes, but I am confused now because the deadline of this assignment after 4 hours

Answer 16

for*

Answer 17

BIL= mg or
B*0.50*0.15= 0.0056*0.15*4*9.81 or
B = (0.0056*4*9.81)/0.50 = 0.439 or 0.44 T