Consider a conducting loop carrying a current I, as shown. A B I When a magnetic field is turned on, the loop rotates such that the side labeled A moves up (out of the screen) and the side labeled B moves down (into the screen). The magnetic field is directed downwards. directed upwards. directed to the right. directed to the left. directed into the screen. directed out of the screen. O 0 o o O O
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- Problem 2: Four current carrying wires are arranged in the corners of a square as shown in the picture.-) Two long wires carry equal currents. What is the direction of the magnetic field at point A due to the two wires? A I Select one: O Along -Y O Along +Y O Along -Z O Along +ZWhich of the following describes the magnetic field produced by a long straight current carrying wire? O Radially outward from the wire O In the direction of the current O Radially inward toward the wire O Opposite to the direction of the current O Circles that are concentric with the wire
- The magnitude and direction of the magnetic field at that point at a distance of 5 cm from three very long conductive wires, perpendicular to the plane of the page and parallel to each other, on which a current of 5 amperes flows, a) i1 ,i2 ,i3 currents in the same direction into the page plane, b) Find if i is outwards, i2 and i3 are inwards. ( k=10-7 n/amp2)Two long parallel wires 20 cm apart carry currents of 5.0 A and 8.0 A in opposite directions. At what point is the net magnetic field due to the two of them zero? O 53 cm from the 5-A wire O 33 cm from the 8-A wire O 33 cm from the 5-A wire O 12 cm from th3 8-A wire O There is no point where the net magnetic field is zero.When the current in a straight conductor is flowing downwards, what is the direction of the magnetic field when viewed from above?
- Through a circular spiral and in an anticlockwise direction, the current intensity of 25A circulates. The radius of the spiral is 10 cm. Decide:A) face through which we are seeing the spiral.B) value of the magnetic field in the center of the spiral.A proton is initially moving west at a speed of 1.05 x 106 m/s in a uniform magnetic field of magnitude 0.295 T directed vertically upward. Describe in detail the proton's trajectory, including its shape and orientation. the radius of the path the proton's trajectory ---Select---Two very long wires carry currents in horizontal directions, as shown in the figure. Wire 1 carries current Ij to the right, and wire 2 carries current I2 to the left. The direction of the magnetic force acting on wire 2 is Wire I Wire 2 o none of these. There is no force on wire 2. o to the left. o to the right. O up the page. O out of the page. o down the page. into the page.
- Current flows through the wire in the direction shown. Determine the direction of the B-field at each of the labeled points. A B C A: out of the page; B: into the page, C: into of the page O A: to the right; B: to the left; C: to the left O A: into the page; B: out of the page, C: out of the page A: to the left; B: to the right; C: to the rightQuestion 3) A) An electromagnetic flowmeter is to be used to measure blood speed. A magnetic field of 0.175 T is applied across an artery of inner diameter 3.80 mm. The Hall voltage is measured to be 91.4 μV. What is the average speed of the blood flowing in the artery? B) A sodium ion (Na+) moves along with the blood in an artery of diameter 1.00 cm. The ion has mass 22.99 u and charge +e. The maximum blood speed in the artery is 6.05 m/s. Earth’s magnetic field in the location of the patient has magnitude 32.8 μT. What is the greatest possible magnetic force on the sodium ion due to Earth’s field?Two long, parallel wires carry currents of I, = 10.0 A and I, = 5.0 A in opposite directions (see figure below). Which of the following statements must be true? More than one statement may be correct. I II III O In region I, the magnetic field is into the page and is never zero. O In region II, the field is into the page and can be zero. O In region III, it is possible for the field to be zero. O In region I, the magnetic field is out of the page and is never zero. O There are no points where the field is zero.