Q1.

Along straight wire carries a current of 3.4 A going out of the screen. The location of the wire is (0.2 m, 0.1 m) as shown in the figure below. Each square in the grid is 10 x 10 cm. The location of point P is (0.4 m, 0.3 m). Consider only magnetic force in this problem; there is no gravity or any other forces. 2a) Determine the magnitude of the magnetic field at point P. Use scientific notation if you find a very small number. For example, a value like 1.23 x 10~ should be entered as 1.23e-4 Note that WebAssign does the same thing. answer = _ Check your answer | not yet solved Show solution 2b) In what approximate direction is the magnetic field at point P? Oright Owup/right Oup Oup/left Oleft Odown/left Odown Odown/right O field is zero Check your answer | not yet solved 2) What angle does the B-field make with relative to the positive x-axis? Define counter-clockwise as the positive direction, and give your answer in degrees within the range [0, 360 deg]. In other words, if B is straight to the right, the angle is o degrees, while it's 90 degrees if B points up. answer = - Check your answer | not yet solved Show solution Two long straight parallel wires both carry a current. Current I; is 1 A going into the screen and current I, = 7.8 A is out of the screen. The wire carrying current I is located at 1 = 0.8 m, current I5 is located at 3 = 0.1 m, and point P lies at position p = 0.5 m. (The short vertical lines in the figure below are 10 cm apart.) 3a) Determine the magnitude of the magnetic field at point P. Use scientific notation if you find a very small number. For example, a value like 1.23 x 10~ should be entered as 1.23e-4 Note that WebAssign does the same thing. answer = - Check your answer | not yet solved Show solution 3b) In what direction is the magnetic field at point P? Oup Oup/right Oright down/right down Odown/left Oleft Oup/left Ofield is zero Check your answer not yet solved Show solutionA long straight wire carries a current of 4.3 A going into the screen. The location of the wire is (0.3 m, 0.2 m) as shown in the figure below. Each square in the grid is 10 x 10 cm. The location of point P is (0.3 m, 0.4 m). Consider only magnetic force in this problem; there is no gravity or any other forces. y P 1a) Determine the magnitude of the magnetic field at point P. Use scientific notation if you find a very small number. For example, a value like 1.23 x 10~ should be entered as 1.23e-4 Note that WebAssign does the same thing. answer = |0.0000043 Check your answer | solved at least once Show solution 1b) In what approximate direction is the magnetic field at point P? @right Owup/right Oup Oup/left Oleft Odown/left Odown Odown/right O fieldiszero Check your answer | solved at least once Show solution Good job! The correct answer is right. 1c) What angle does the B-field make with relative to the positive x-axis? Define counter-clockwise as the positive direction, and give your answer in degrees within the range [0, 360 deg]. In other words, if B is straight to the right, the angle is 0 degrees, while it's 9o degrees if B points up. answer = (90 Check your answer | not yet solved Show solution Your answer is not correct (it differs more than 1% from the solution). Please try again