Find the magnitude and direction of the magnetic field

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1. Two long, straight wires are parallel and are separated by a distance of d = 0.230 m. The top wire in the sketch carries current I1 = 3.80 A, toward the right, and the bottom wire carries current I2 = 7.00 A, also to the right. At point P, midway between the two wires, what are the magnitude and direction of the net magnetic field produced by the two wires?

2. A circular loop and a long, straight wire carry currents as shown in the figure below. The current in the wire is I1 = 14.0 A,toward the right in the sketch. The current in the loop is I2 = 4.40 A and is counterclockwise. The radius of the loop is R = 0.140 m and the point on the loop closest to the long, straight wire is
d = 0.0800 m from the wire, as shown in the sketch. What are the magnitude and direction of the resultant magnetic field at the center of the loop (point P)?


3. The long, straight, and closely-wound solenoid shown in the figure below has length L = 0.660 m, 500 turns of wire and the radius of each turn is R = 1.60 cm. The solenoid is connected to a 64.0-Vbattery and the current I in the solenoid is 6.00 A. What are the magnitude and direction of the resultant magnetic field at a point inside the solenoid, near the center (point P)?

Reference no: EM13242397

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