A long solenoid has 100 turns/cm and carries current i.An electron moves within the solenoid in a circle of radius 2.30 cm perpendicular to the solenoid axis. The speed of the electron is 0.0460c (c = speed of light). Find the current i in the solenoid.

A conducting rod of length = 35.0 cm is free to slide on two parallel conducting bars as shown in the figure below. Two resistors R₁ = 2.00 and R₂ = 5.00 are connected across the ends of the bars to form a loop. A constant magnetic field B = 2.10 T is directed perpendicularly into the page. An external agent pulls the rod to the left with a constant speed of v = 7.65 m/s. Find the following. R₁ www xxx x x *=* X x * X x x xxx (a) the currents in both resistors 2.00- resistor 5.00- resistor N xxx xxx X A A X X xxxx x xxxxxx * * x xxxx M * R₂ (b) the total power delivered to the resistance of the circuit W (c) the magnitude of the applied force that is needed to move the rod with this constant velocity

A cylindrical bar magnet of radius 1.00 cm and length 10.0 cm has a magnetic dipole moment of magnitude m = 2.00 A · m². What is the magnetization M, assuming it to be uniform in the magnet? 6.37 × 104 A/m 2.53 × 104 A/m 3.18 × 104 A/m 1.86 × 104 A/m 3.18 × 10² A/m

Question in the attachments

A long, straight wire lies on a horizontal table and carries a current of 1.20 µA. In a vacuum, a proton moves parallel to the wire (opposite the current) with a constant velocity of 2.30 x 10^4 m/s at a distance d above the wire. Determine the value of d.

A strip of metal (made from copper, with 8.47 x 1028 charge carriers/m³) is placed in a uniform magnetic field oriented perpendicular to the strip with magnitude 0.205 T. A current i = 6.18 A is passed through the strip, giving rise to a Hall potential across its thickness of 0.481 mm. What is the magnitude of the Hall potential that arises? i V

A loop of wire moves with a velocity of 3.0 m/sm/s through a magnetic field whose strength decreases with distance at a rate of 5.0 μT/m�T/m. If the loop has an area of 0.75 m2m2 and internal resistance of 0.50 ΩΩ, what is the current in the wire?

A coil with the radius of 20 cm has 10 turns and carries a current of 4 A. A charged particle whose charge equals 60 µ C moves at 1500 m/s through the center of the coil at an angle of 300 to the axis. Compute the magnitude of the force exerted on the particle.

A particle of mass m and charge q is accelerated along the +x axis (in the plane of the page) from rest through an electric potential difference V. The particle then enters a region, defined by x > 0, containing a uniform magnetic field. y V = 400.0 V B = 0.850 T q = -1.602 × 10-19 C m = 6.68 × 10-27 kg V B = 0 8. When the particle first enters the region with the magnetic field the Lorentz force acting on it is directed along the +y axis. What is the direction of the Magnetic field? Explain your reasoning a. +z b. -z с. +x d. -x

The magnetic field inside an air-filled solenoid 40.0 cm long and 3.00 cm in diameter is 0.535 T . Approximately how much energy is stored in this field?