A beam of protons traveling at 1.40 km/s enters a uniform magnetic field, traveling perpendicular to the field. The beam exits the magnetic field, leaving the field in a direction perpendicular to its original direction (the figure (Eigure 1)). The beam travels a distance of 1.70 cm while in the field. Part A What is the magnitude of the magnetic field? Express your answer in teslas. ? Figure < 1 of 1 B = T X X X X X XX X B X X X X 圓
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- An electron moves at right angles to a magnetic field of 0.23 T. Part A What is its speed if the force exerted on it is 9.1x10-15 N? Express your answer using two significant figures. IVO ADC ? v = m/sAn electron accelerated from rest through a voltage of 770 V enters a region of constant magnetic field. Part A If the electron follows a circular path with a radius of 18 cm, what is the magnitude of the magnetic field? Express your answer using two significant figures. % AED ? B- T Submit Request AnswerPlease help.
- 1. What is the expected charge to mass ratio for an electron based on the unknown values for the charge and mass of an electron? 2. Comment on the accuracy of your results. Does your results agree with the expected charge to mass ratio for an electronThe long, thin wire shown in the figure (Figure 1) is in a region of constant magnetic field B. The wire carries a current of 6.2 A and is oriented at an angle of 7.5° to the direction of the magnetic field. Part A If the magnetic force exerted on this wire per meter is 3.5×10-2 N, what is the magnitude of the magnetic field? Express your answer using two significant figures. VE ΑΣΦΑΙΡΟ B = 40 Submit Part B X Incorrect; Try Again; 29 attempts remaining Previous Answers Request Answer 0 = 3.7 Submit ? At what angle will the force exerted on the wire per meter be equal to 1.6×10-² N ? Express your answer using two significant figures. 197| ΑΣΦΑ Previous Answers Request Answer ? mT X Incorrect; Try Again; 29 attempts remainingA potential difference of 0.055 V is developed across the 10-cm-long wire of (Figure 1) as it moves through a magnetic field perpendicular to the plane of the figure. Figure 10 cm 5.0 m/s |+++ 1 of 1 Part A What is the strength of the magnetic field? Express your answer with the appropriate units. B = Submit Part B Value μÀ O to the right Request Answer What is the direction of the magnetic field? Submit out of the page to the left O into the page Provide Feedback Request Answer B Units ?
- The magnetic field B at all points within the colored circle of the figure (Figure 1)has an initial magnitude of 0.700 T. (The circle could represent approximately the space inside a long, thin solenoid.) The magnetic field is directed into the plane of the diagram and is decreasing at the rate of 0.0300 T/s. Figure X X X X X B X /b X 1 of 1 10.0 cm Part C What is the current in the ring if its resistance is 4.00 $? ΑΣΦ I = Submit Part D X Incorrect; Try Again; 5 attempts remaining What is the emf between points a and b on the ring? ε = Previous Answers Request Answer Submit Part E ΠΙΑΣΦ Request Answer ? IVE ΑΣΦ ? A If the ring is cut at some point and the ends are separated slightly, what will be the emf between the ends? ? VPlease refer to the image:electricity and magnetic physics
- Figure 1.0 cm 2.0 x 107 m/s 1.0 cm X 1 of 1 Proton Part A What is the magnetic field at the position of the dot in the following figure (Figure 1)? Give your answer as a vector. Express your answer in terms of the unit vectors i, j, and k. Use the 'unit vector' button to denote unit vectors in your answer. ΠΫΠΙ ΑΣΦ B = Submit Provide Feedback Request Answer ? TA 50 g horizontal metal bar, 15-cm-long, is free to slide up and down between two tall, vertical metal rods that are 15 cm apart. A 5.5×10-2 T magnetic field is directed perpendicular to the plane of the rods. The bar is raised to near the top of the rods, and a 1.2 resistor is connected across the two rods at the top. Then the bar is dropped. Part A What is the terminal speed at which the bar falls? Assume the bar remains horizontal and in contact with the rods at all times. Express your answer in meters per second. 跖 ΑΣΦ ? v = Submit Request Answer m/s