A square loop of wire is connected to a power supply. The grey circles indicate the commutators and brushes that allow the loop to turn. A current flows in the loop in the direction of the black arrows. The loop is placed in a uniform magnetic field indicated by the arrow between N and S. In which direction will the loop rotate? counter clock-wise clock-wise
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A square loop of wire is connected to a power supply. The grey circles indicate the commutators and brushes that allow the loop to turn. A current flows in the loop in the direction of the black arrows. The loop is placed in a uniform magnetic field indicated by the arrow between N and S. In which direction will the loop rotate?
counter clock-wise |
||
clock-wise |
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- The three conducting rings in the figure are all in the same plane as a long wire. The wire has a current / that is steadily decreasing with time at a constant rate. What can you say about the induced electromotive force in each of the rings A, B, and C? A O No electromotive force is induced in any of the rings. O A counter-clockwise electromotive force is induced in ring A, but a clockwise electromotive force is induced in rings B and C. O A clockwise electromotive force is induced in ring A. Ring B has no induced electromotive force, and ring C has a counterclockwise electromotive force. O All rings have a counterclockwise induced electromotive force. O A counter-clockwise electromotive force is induced in ring A. Ring B has no induced electromotive force, and ring C has a clockwise electromotive force.The distance between the wire and the circular current loop is r = 2.4 cm. (Figure 1) Figure O 2.0 A -Wire 0.20 A 1 of 1 2.0 mm What is the magnitude of the torque on the circular current loop? Express your answer with the appropriate units. T = Submit Part B μÀ Value Request Answer Units What is the loop's stable equilibrium position? ? O The dipole will be in equilibrium after rotating clockwise 135°. O The dipole will be in equilibrium after rotating clockwise 180°. O The dipole will be in equilibrium after rotating clockwise 45°. O The dipole will be in equilibrium after rotating clockwise 90°.A 68.0-cm-diameter cyclotron uses a 450 V oscillating potential difference between the dees. Part A What is the maximum kinetic energy of a proton if the magnetic field strength is 0.740 T? Express your answer with the appropriate units. Value Submit Part B μA Submit Units Request Answer IV—| ΑΣΦ 3 How many revolutions does the proton make before leaving the cyclotron? ? Request Answer ?
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- Due to the bar magnet being pulled away from the solenoid, the included pole that is created at location I is a _____ pole. The electron flowing through the galvanometer would be ____.Homework Help(Hand by written ans.)A circular loop (10 turns) with a radius of 29 cm is in a magnetic field that oscillates uniformly between 0.95 T and 0.45 T with a period of 1.00 s. a. How much time is required for the field to change from 0.95 T to 0.45 T? b. What is the cross-sectional area of one turn of the loop? c. Assuming that the loop is perpendicular to the magnetic field, what is the induced emf in the loop? I have a test and i am revising and I got 2 answers for this question. could you please explain each step thoroughly for me to understand.
- a. The circle below represents a Brunton compass. What is the bearing of the following objects with respect to you if the needle of the compass points to the following directions? Express the reading in quadrantal and azimuthal notation. Note that magnetic north is denoted by 0°. Hint: You must first use geometric construction to find the center of the circle. 0° A Direction Quadrantal Azimuthal A В В EConsider a straight conductor of length 15 cm. The conductor moves at right angles to a magnetic field of uniform strength B = 10-³ T generating e.m.f. of 2,5 x 10-5 V. Calculate the velocity of the straight conductor. Give your answer in Sl units. Answer: m/s ♦