Just 25 and 26 please and thank you Determine (a) the to be 1.02 p asured (b) th

Question

Just 25 and 26 please and thank you

Determine (a) the to be 1.02 p asured (b) the density of (conductingth electrons and unit volume) the copper, H the (number per Section 18 the beam of doctrom that goes 20-5 and 20-6 Field of Straight Wire Force between Two Wires e often carry bat mapitudes and a 65-A rent, How strong is the magnetic field 45 the ndias of the from one cable? Compare to the Earth's magnetic fi:l (50 x 10 mio base manuis66x10 lf an electric wire is allowed to produce a magnetic field oitapeet 3mev Whatis is speed? nolarger than that of the Earth (0.50 x 10 T at a distan. v tadsadarmuture k nove in a of 12cm from the wire, what is the maximum current wire can carry n. l) Determine the magnitude and direction of the fo pride n and darp g moving in a etween two parallel wires 25 m long and 4.0 cm apert. te vpustelbenissof 2s. each carrying 25 A in the same direction. ourva- wire carrying an upward 28-A cument erents an attractive force per length of current on a second parallel wire 9.0cm away. What and direction) nows in wine the second long straight wire camies current straig one when sand are (a) in the straigh 36, is a netic field stren at a distan magnitude and 17. (II) Two long the page tow Indicate, with ap tion of B at eac plane of the pa at any of the po ay A power tops of 8.5-m. direction of

Explanation / Answer

Just apply the magnetic field formula:

B = (Uo)I / 2pi*r

B = (4*pi*10^-7 * 65A) / (2pi*.12m)

B = 1.083 x 10^-4 Tesla



The percentage is thus:

1.083x10^-4T / 5x10^-5T *100 = 216.6%

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