A coil of wire carrying current I can rotate freely about an axis in a uniform magnetic field. The coil is in the plane of the page, and the magnetic field is directed from left to right and the current is flowing counterclockwise as shown. If released from rest in the position shown, which way does it rotate? аxis IV В
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- A square loop with side length L carries a current I, counterclockwise. The loop is placed in a uniform magnetic field of magnitude B that points upwards. B L Find the direction of the force on the top segment of the loop due to the external magnetic field. ca) In the above problem, find the direction of the force on the bottom segment of the loop due to the external maanetic field. ) In the above problem, find the direction of the force on the left segment of the loop due to the external magnetic field. () In the above problem, find the direction of the force on the right segment of the loop due to the external magnetic field. the above problem, find the magnitude of the net force on the loop at the instant shown. (C) In the above problem, find the magnitude of the net torque on the loop at the instant shown. () In the above problem, in which direction will the loop rotate?How should you orient a current-carrying wire in a uniform magnetic field such that there's no net magnetic force on the wire (select all that apply)? O Place the wire along an axis that is parallel to the magnetic field O Place the wire along an axis that forms an angle of 45° with respect to the magnetic field Place the wire along an axis that is at right angles to the magnetic field O Place the wire along an axis that is anti-parallel to the magnetic fieldThe answer is C) 205.36 but I am confused on the steps of how to solve this problem.
- At the equator, near the surface of Earth, the magnetic fieldis approximately 50.0 µT northward, and the electric field isabout 100. N/C downward in fair weather. Find the gravitational,electric, and magnetic forces on an electron with aninstantaneous velocity of 6.00 x 106 m/s directed to the eastin this environment.As shown in the figure, a uniform conducting rod of length 0.38 m and mass 0.075 kg is in rotational equilibrium about the hinge at point O. A uniform magnetic field of 0.32 T is directed out of the plane of the page, perpendicular to the rod. Due to a battery and wires not shown, there is a current of 4.0 A in the rod directed toward point O. Determine the angle 8. O 0Problem 8: The long straight wire carries a current Ii (directed to the right) and the rectangular loop carries a current 2 (counterclockwise). H, I Recall, a long current carrying wire produces a magnetic field B1ong straight wire 2n r a 1 4 b 3 L (a) On the figure above, indicate the direction of the force on each segment of the rectangular loop due to the long current carrying wire. The forces act inward on each segment of wire (anti-parallel currents repel one another). (b.) Does the current in the long wire result in a net force on the rectangular loop? If so, describe the subsequent motion of the rectangular loop. Because the force on the top wire is stronger than the force on the bottom wire the loop accelerates away from the long wire.
- A current I is passed through a wire. A second wire of length L is moving perpendicular to the magnetic field generated by the first wire (see sketch below) with velocity v at a distance d. Write down the expression for the potential difference V between the ends of the moving wire. Consider the magnetic field B to be constant over the range of motion of the second wire (i.e. d » 1). Use μ for the vacuum permittivity. Please use appropriate algebraic symbols for multiplication (* for a × b), division (/ for a/b), exponents (a^b for a³), square root (sqrt(a*b/c) for √a× b/c) etc. For Greek letters use their names e.g. "theta", "alpha", "pi", "mu" (without the quotes) and for trigonometric functions use "cos", "tan", "sin" (without the quotes). Thus for Acose use A*cos theta. Please use the "Display response" button to check you entered the answer you expect. Wire 1 Wire 2 d VThe figure below shows a long straight wire just touching a circular loop carrying a current I, = 2.72 A in the clockwise direction. Both lie in the same plane. (a) What direction must the current I, in the straight wire have in order to create a magnetic field at the center of the loop in the direction opposite to that created by the loop? O from right to left O from left to right (b) What current must the long straight wire carry in order to have zero net magnetic field strength at the center of the loop?