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4..+ .11%92 18:27 Side view conducting coil consisting of n turns of wire is placed ina...
Imagine that we have a coil consisting of N turns of wire shaped like a circular loop with radius R. We place this coil in a uniform external magnetic field that points perpendicular to the face of the coil. Imagine that the magnitude of this external field is given by the formula B(t) = B_o cos(omega t - phi) where B_o, omega and phi are all constants. Find an expression for the induced emf in the loop as a function...
A rectangular coil of length a and width b consisting of N turns is rotated at a frequency f in a uniform magnetic field as shown in the Figure. The coil is connected to two co-rotating cylinders against which metallic brushes make a sliding electrical contact. This is the basic design of an alternating current generator. (a) Find the emf, E, induced in the coil as a function of time in terms of B, N, a, b, and f. (b)...
5. A rectangular coil of length a and width b consisting of N turns is rotated at a frequency fin a uniform magnetic field as shown in the Figure. The coil is connected to two co-rotating cylinders against which metallic brushes make a sliding electrical contact. This is the basic design of an alternating current generator. (a) Find the emf, E, induced in the coil as a function of time in terms of B, N, a, b, and f. (b)...
A circular coil of wire with a radius 4 cm and 150 Turns is placed in a uniform magnetic field of magnitude 0.6 T. The magnetic field is parallel to the area vector; I.e. perpendicular to the plane of the coil. A)What is the magnetic flux through the coil? B)The magnetic field is decreased to 0T in .1 seconds. What is the magnitude of the emf induced in the coil during this time interval?C) If the coil has a resistance...
The radius of a coil of wire with N turns is r = 0.28 m. A clockwise current of Icoil = 1.0 A flows in the coil, as shown. A long, straight wire carrying a currentIwire = 29 A toward the left is located 0.04 m from the edge of the coil. The magnetic field at the center of the coil is zero tesla. Determine N, the number of turns.
QUESTION 27 A circular coil of wire with radius 3 cm and 50 turns is placed in a uniform magnetic field of magnitude 0.4 T. The magnetic field is parallel to the area vector; l.e. perpendicular to the plane of the coll." a) What is the magnetic flux through the coll? b) The magnetic field is decreased to 0 in 0.1s. What is the magnitude of the emf induced in the coll during this time interval? c) If the coil...
Incorrect Question 4 0/3 pts A coil of wire with N turns has a radius of Rand a current of I. Which of the following actions will increase the strength of the magnetic field inside the coil? Reduce the number of turns of wire in the coll. Increase the number of turns of wire in the coil Reduce the current in the coil None of the these actions will increase the magnetic field.
A thin coil has 60 circular turns of wire of radius 4 cm. The current in the wire is 8 amperes. (a) What is the magnetic dipole moment of this coil? (b) At a distance of 40 cm from the center of the coil, along the axis of the coil, what is the approximate magnitude of the magnetic field contributed by the coil? The coil is placed with its axis along the x axis. A bar magnet whose magnetic dipole...
Chapter-21; Magnetic Fields and Magnetics Forces. 3. A circular loop of wire with N= 40 turns and of radius r = 0.45 m (cross-sectional area A = ir) carries a constant current of I = 6 A. The loop may be rotated about an axis that passes through the center and lies in the plane of the loop. When the orientation of the normal to the loop with respect to the direction of the magnetic field is o = 60°,...
A square, single-turn wire loop ℓ = 1.00 cm on a side is placed inside a solenoid that has a circular cross section of radius r = 3.00 cm, as shown in the end view of the figure below. The solenoid is 24.5 cm long and wound with 104 turns of wire. (a) If the current in the solenoid is 2.30 A, what is the magnetic flux through the square loop? T · m2 (b) If the current in the...