Part A Positive point charges q = 9.00 µC and q' = 4.00 uC are moving relative to an observer at point P, as shown in the figure (Figure 1). The distance d is 0.130 m , v = 4.40x106 m/s , and v = 8.80x106 m/s When the two charges are at the locations shown in the figure, what is the magnitude of the net magnetic field they produce at point P? ΠΥΠ ΑΣφ B = T igure < 1 of 1> Submit Request Answer Part B What is the direction of the net magnetic field at point P? d O into the page
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- Part A A toroidal solenoid (see the figure (Figure 1)) has inner radius 15.6 cm and outer radius 19.5 cm. The solenoid has 220 turns and carries a What is the magnitude of the magnetic field at 10.9 cm from the center of the torus? current of 7.30 A ? B = T Submit Request Answer Part B Figure 1 of 1 What is the magnitude of the magnetic field at 16.2 cm from the center of the torus? B Hν ΑΣφ ? B = T Path 1 Submit Request Answer Path 2 Path 3 (a) (b) Rort oPart A A wire has a length of 0.10 m and is carrying a current of 14 A. When the wire is placed in a 8.0 T magnetic field, it experiences a force of 3.0 N. What is the angle between the wire and the magnetic field? Express your answer in degrees. Φ ——| ΑΣΦ Submit Request Answer ?In a physics laboratory experiment, a coil with 200 turns enclosing an area of 11.4 cm² is rotated in a time interval of 3.30x10-2 s from a position where its plane is perpendicular to the earth's magnetic field to one where its plane is parallel to the field. The earth's magnetic field at the lab location is 6.2x10-5 T. Part A What is the total magnetic flux through the coil before it is rotated? Express your answer using two significant figures. 15. ΑΣΦ ? P₁ = Submit Wb Request Answer Part B What is the total magnetic flux through the coil after it is rotated? Express your answer using two significant figures. 15. ΑΣΦ Sve ? Wb
- Part A What is the magnetic field at the position of the dot in the figure (Figure 1)? Give your answer as a vector. Express your answer in terms of the unit vectors i, j. Figure 1 of 1 and k. Use the 'unit vector' button to denote unit vectors in your answer. у (cт) 2.0 x 10' m/s ΑΣφ 1 Proton B T x (cm) 1 -1part a and part b pleasePart A and B A thin, 55.0 cm long metal bar with mass 730g rests on, but is not attached to, two metallic supports in a uniform magnetic field with a magnitude of 0.410 T, as shown in (Figure 1). A battery and a resistor of resistance 29.0 Ω are connected in series to the supports. Part A What is the largest voltage the battery can have without breaking the circuit at the supports? Part B The battery voltage has the maximum value calculated in part (a). If the resistor suddenly gets partially short-circuited, decreasing its resistance to 2.40 Ω, find the initial acceleration of the bar.
- ▼ Part A Suppose you have a magnetic field with a strongth of 45 uT directed along the m-axis. If a 34 cm x 50 cm wire loop is placed at a 60-degree angle to the z axis before being shifted to a 30-degree angle to the z-axis. what is the difforonce in flux within the loop? Note: 1 Wb= T m². Express your answer in webers. Γ.Γ ΑΣΦ 30-60 2.80.10 6 → C Submit Previous Answers Request Answer X Incorrect; Try Again; One attempt remaining ? WhA coil has 180 turns enclosing an area of 10.4 cm². In a physics laboratory experiment, the coil is rotated during the time interval 0.046 s from a position in which the plane of each turn is perpendicular to Earth's magnetic field to one in which the plane of each turn is parallel to the field. The magnitude of Earth's magnetic field at the lab location is 5.00×10-5 T. Part A What is the magnitude of the magnetic flux through one turn of the coil before it is rotated? Express your answer in webers. View Available Hint(s) initial Submit Part B |final = = Submit —| ΑΣΦ = What is the magnitude of the magnetic flux through one turn of the coil after it is rotated? Express your answer in webers. ► View Available Hint(s) ΠΙ ΑΣΦ ? Wb ? WbPart A A proton is first accelerated from rest through a potential difference V and then enters a uniform 0.750-T magnetic field oriented perpendicular to its path. In this field, the proton follows a circular arc having a radius of curvature of 1.84 cm. What was the potential difference V? (mproton = 1.67 x 10-2 kg, e = 1.60 × 10-19 C)
- Two VERY LONG wires are placed along parallel lines as shown below in the picture. LEFT (at X1= 0) has a current going out of the page of value, I1 = 4 A. The current on the RIGHT (at X2= d) has a current going into the page of the page of value, l2 = 6 A. The point "P" is at the location (x=6.00cm, z=10.4cm) The wire ON THE %3| d (X) d Wire 1 Wire 2Part A A magnetic field is used to suspend a wire of mass 5.0x10-2 kg and length 0.12 m. The wire is carrying a current of 10 A. What minimum magnetic-field magnitude is needed to balance the pull of gravity? Express your answer in teslas. 17| ΑΣΦ H ? TAn open plastic soda bottle with an opening diameter of 3.0 cm is placed on a table. A uniform 1.50 T magnetic field directed upward and oriented 30 from vertical encompasses the bottle. Part A What is the total magnetic flux through the plastic of the soda bottle? Express your answer using two significant figures. ? Wb Submit Request Answer