A closely wound, circular coil with radius 2.20 cm has 780 turns. Part A What must the current in the coil be if the magnetic field at the center of the coil is 5.30×10-2 T? IVE ΑΣΦ 4 ? 1 = Submit Request Answer A
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Q: A circular coil 15.0 cm in diameter and containing nine loops lies flat on the ground. The Earth's…
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- A 10 cm x 10 cm square is bent at a 90° angle. A uniform 5.70x10-2 T magnetic field points downward at a 45° angle.(Figure 1) You may want to review (Pages 843-845). For help with math skills, you may want to review: The Vector Dot Product Figure 45% 5 cm 18 B 1 1 of 1 5 cm 10 cm Part A What is the magnetic flux through the loop? Express your answer with the appropriate units. Value Submit HÅ Provide Feedback Units Request Answer □】?The uniform 30.0 mT magnetic field in the figure points in the positive z-direction. An electron enters the region of magnetic field with a speed of 5.50 x 106 m/s and at an angle of 30° above the xy-plane. (Figure 1) Figure X Z 000 30° 12 1 of 1 Part A Find the radius r of the electron's spiral trajectory. Express your answer with the appropriate units. I JA Value Submit Part B DO Request Answer Find the pitch p of the electron's spiral trajectory. Express your answer with the appropriate units. μÅ Value Units Submit Request Answer Return to Assignment Units www ? Provide Feedback ?Two long wires are oriented so that they are perpendicular to each other. At their closest, they are 20.0 cm apart (see the figure(Figure 1)). Figure Part A B = Submit B = ? 10.0 cm Dr 17 ΑΣΦ IT=2 10.0 cm = 20.0 A Bottom wire Request Answer What is the magnitude of the magnetic field at a point midway between them if the top one carries a current of 20.0 A and the bottom one carries 12.0 A? ?
- The uniform 33.0 mT magnetic field in the figure points in the positive z-direction. An electron enters the region of magnetic field with a speed of 5.00 ×106 m/s and at an angle of 30° above the xy-plane. (Figure 1) Figure X B 000 30° y 1 of 1 ▼ Part A Find the radius r of the electron's spiral trajectory. Express your answer with the appropriate units. Value Submit Part B μA Submit Value Provide Feedback Request Answer Find the pitch p of the electron's spiral trajectory. Express your answer with the appropriate units. HÅ Units Units Request Answer WWW ? ?A small circular coil of 20 loops of wire having a radius of 1 cm is at rest in the X-y plane (so the normal to the loop points in the +z-direction). A uniform magnetic field of 0.5 T is turned on in the +x-direction. What is the magnetic flux through the loop? a. 7.85 x 10 Tm² b. 1.57 x 10 4 T m² O c. 3.14 x 10 3 T m2 O d. 0 T m2A loop of wire was bent into the shape shown below. Two arcs connected by radial wires. If the angle 0 is in units of radians, what is the magnitude and the direction of the magnetic field at point C. R2 R1 C Hol B = R1 R2 а. O b.0 Hol B = 1 + R1 R2 с. Hol e 1 1 B = d. R1 R2 Hol B = 1 + R1 R2 е.
- In a physics laboratory experiment, a coil with 160 turns enclosing an area of 10.4 cm² is rotated in a time interval of 4.40x10-2 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 7.0x10-5 T. Part B What is the magnetic flux through each turn of the coil after it is rotated? Express your answer using two significant figures. 15. ΑΣΦ Submit Part C Request Answer What is the average emf induced in the coil? Express your answer using two significant figures. Submit 195] ΑΣΦ Request Answer ? V WbThe component of the external magnetic field along the central axis of a 69 turn circular coil of radius 47.0 cm decreases from 2.90 T to 0.700 T in 2.10 s. If the resistance of the coil is R = 3.00 §, what is the magnitude of the induced current in the coil? magnitude: What is the direction of the current if the axial component of the field points away from the viewer? counter-clockwise clockwise AN circular loops of conducting wire of radius 3.0 cm carries a current of 10 A. If the magnetic field at the center of the multiple turns of loop is 3.14 x 10-3 T, how many turns of loop are in the conducting coil? a. 15 b. 10 c. 30 d. 20 e. 25
- 9= A single-turn circular loop has a radius of 25 cm, it is placed in a magnetic field of B 3.5 T which is perpendicular to the plane of the loop, see the figure below. The loop is reshaped into a perfect square without stretching the length of the loop. It takes 0.43 s to reshape the loop. What is the magnetic flux through the loop before and after it is reshaped? B X X X X X X X X X X X X X x x The final flux, Of = 5 x X X X X X X The initial flux, ¡ = 0.0000006 X Units mWb Х Х The induced emf, Emf = 34 X Units mWb x X X X What is the magnitude of the average induced emf in the loop during the reshaping process? X Units mV хх Question Help: Message instructor Post to forumPart B