1. [1/4 Points] DETAILS PREVIOUS ANSWERS CLPHYS1 27.P.019. MY NOTES Current in Each In Fig. 27-27 find the current in each resistor and the potential difference between a and b. Put 8, = 7.0 V, 62 = 4.5 V, 63 = 2.0 V, R1 = 120 0, and R2 = 30 0. A (current in R1 ) A (current in R2) Magnitude of potential difference between a and b V Which point is at the higher potential? point a O point b R25 W Figure 27-27 2. [-/2 Points] DETAILS HRW9 28.P.045. MY NOTES A wire 40.0 cm long carries a 0.450 A in the positive direction of an x axis, through a magnetic field B = (0.0030 T) j + (0.010 T) k. Find the magnetic force on the wire. Nj + N K 3. [-/1 Points] DETAILS HRW9 29.P.001. MY NOTES A surveyor is using a magnetic compass 5.1 m below a power line in which there is a steady current of 112 A. Compared to a typical value for Earth's magnetic field of 20 UT, the magnetic field due to the power line is significant and would interfere with the compass reading. What is the magnetic field at the site of the compass due to the power line? Math Help Right-hand_rule - B-Field Due to Current in a Long Wire4. [12 Points] DETAILS OSUNIPHYS1 29.1.WA.003. MY NOTES An innitely lung wire carrying a current of 2.70 A is bent at a right angle as shown in the figure. Determine the magnitude and direction of the magnetic eld at the point P a distance a = 21.0 cm from each leg of the right angle bend. magnitude E T direction