A coil of wire with 3 turns is attached to a 5 Ohm resistor and is oriented perpendicular to a uniform magnetic field as shown. At a particular instant, the magnitude of the magnetic field is 0.5 Tesla and is increasing at a rate of 0.2 Tesla/second. The area of each turn in the coil is 0.1 m2. What is the magnitude of the current through the resistor? A. 0.030 A В. 0.012 A B (increasing) C 0.010 A D. 0.006 A Е. 0.004 A 5Ω

A thin, circular coil with 47 turns that has a radius of 20.7 cm carries a current of 2.65 A. What is the strength ?B of the magnetic field at a point on the coil's axis that is 48.9 cm from the center of the coil? B=

For any vector quantity, be sure to always include the magnitude and direction ty

1

Please help me with this question, thank you so much A straight wire of length A carries a current I. The wire lies along the x-axis. a. Calculate the magnetic field due to the wire of length A at some distance D along the y-axis. b.  Find B, when A>>>>D (One end of the wire is at the origin o and the other is along the x-axis a distance A from the origin)

Two circular loops of wire lie in the x-y plane, centered at the origin. The radius of the loops is 5.00 and 7.00 cm. The current in the outer loop is 50.0 mA in the clockwise direction. a. If the current in the inner wire is also 50.0 mA in the clockwise direction, what is the magnetic field strength at the origin? b. What current magnitude and direction in the inner wire will cause the magnetic field to be zero at the origin?

A solenoid is to be designed to produce a uniform magnetic field of 0.01 T in its interior. The radius and the length of the solenoid are to be 4 cm and 80 cm, respectively. If the available wire can carry a maximum current of 10 A, find the minimum total length of wire required. (take μ = 4 x 10-7 T.m/A) a. O b. O C. 160 m 320 m 40 m O d. 80 m O e. 100 m Clear my choice

PP5

Two coils have the same number of circular turns and carry the same current. Each rotates in a magnetic field acting perpendicularly to its axis of rotation. Coil 1 has a radius of 4.6 cm and rotates in a 0.21-T field. Coil 2 rotates in a 0.54-T field. Each coil experiences the same maximum torque. What is the radius (in cm) of coil 2? Number i Units

Option 2: a. An electron is moving at a speed of 4.45 x 105 m/s from north to south in a magnetic field that runs from [NE] to [SWJ. If the magnetic force balances the gravitational force on the electron, determine the strength of the magnetic field. b. Now consider a 50.0 cm long wire with a mass of 60.0 g that carries a current of 15.0 A from north to south. The uniform magnetic field is perpendicular to the above- mentioned wire. What the minimum magnetic field strength and direction that will balance the weight of the wire?