Two conductor wires with currents I₁ = 1.1 × 10³ A and I₂ = 8.5 x 105 A are located inside a uniform electric field = E (139i) N/C. The directions of the currents on the conductor wires are shown in the figure right. For the given instant, a charge particle (g = 4.9C) is passing at the center of the circle formed by the conductor wires with a velocity v = (2.4i - 2.6j)m/s. What is the magnitude of the net force acting on the charged particle for that instant? (Take Mo = 4710-7Tm/A, and R = 12cm.) Provide your answer with zero decimal place. 1₁ Ē Answer: Z R 12 X

Multiple-Concept Example 3 provides some pertinent background for this problem. Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occurring electrons is removed. The radius of the orbit is 3.58 x 10 11 m. Determine the magnitude of the electron's centripetal acceleration. 台灣彩彩彩 Number Units 彩

What is the smallest value of B that can be set up at the equator to permit a proton of speed 107 m/s to circulate around the earth? (R = 6.4× 106 m, m₂ = 1.67 × 10-27 kg). mp

The magnetic force dFg on a infinitesimal segment of current I is dFs = I dEx B Where di is the displacement vector of the infinitesimal current segment. The total magnetic force on a finite current segment is F = 1J (dL x B) 1. If the magnetic field is uniform in space the magnetic force on current simplifies to FB = {(x5). What is vector in this expression? Choose one. is the length of the current segment is the vector from the point where the current enters the uniform field to the point where the current leaves the uniform field. a. What is the magnetic force on the portions of the wire to the left of the dashed line? • is the current. 2. The magnetic field is zero to the left of the dashed line. The magnetic field to the right of the dashed line is uniform outwards. A current carrying wire goes through the region as shown. b. What is the magnetic force on the bottom wire segment? Write answer in component vector form. c. What is the magnetic force on the slanted wire segment?…