4 (a) To P 0.2 m FIGURE 4 Two long straight parallel wires, P and Q are placed 0.2 m apart as shown in FIGURE 4. Wire P

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4 A To P 0 2 M Figure 4 Two Long Straight Parallel Wires P And Q Are Placed 0 2 M Apart As Shown In Figure 4 Wire P 1 (231.19 KiB) Viewed 93 times

4 (a) To P 0.2 m FIGURE 4 Two long straight parallel wires, P and Q are placed 0.2 m apart as shown in FIGURE 4. Wire P carries a current of 1.5 A and wire Q carries a current of 2.0 A. If the direction of current for both wires are upward, determine the magnitude and direction of the resultant magnetic field at midpoint between the wires. [5 marks] Х x Х Х B х Х Х Х Х Х 1 1 Х x Х Х Х x X X х X Х X XS X x X FIGURE 5 FIGURE 5 shows a straight conductor RS of length 1 = 0.065 m moves perpendicularly in a uniform magnetic field of 1.20 T. The emf induced in the conductor is 0.32 V. Calculate the speed of the conductor. If the resistance of the conductor is 0.8 2. determine the magnitude and direction of the induced current. [5 marks) le) A coil of 60 turns and cross-sectional area 4.65 x 10m² is placed in a uniform magnetic field of 0.80 T. The plane of the coil is perpendicular to the magnetic field. Calculate the (i) magnetic flux linkage of the coil.