) Two long straight wires carrying 8 A of conventional current are connected by a three-quarter-circular arc of radius 0.0396 m. An electric field is also present in this region, due to charge not shown on the drawing. An electron is moving to the right with a speed of 6×105 m/s as it passes through the center C of the arc, and at that instant the net force on the electron is zero. (Consider the charge of the electron: q = -1.6×10-19 C) Radius R C. Electron I The magnitude of the magnetic field due to the straight segments at the center of the arc is: straight B [T] 2.) The magnitude of the magnetic field due to the three-quarter-circular arc at the center of the arc is: Barc = [T] 3. The direction of the magnetic field due to the three-quarter-circular arc at the center of the arc is pointing to: Into the page OOut of the page OUpward ODownward 4.) The magnitude of the magnetic force on the electron at the center of the arc is: Fmagnetic [N] 5.) The direction of the magnetic force on the electron at the center of the arc is pointing to: ORight OLeft OUpward ODownward 6.) The magnitude of the electric force on the electron at the center of the arc is: Fe electric [N] 7.) The direction of the electric force at the center of the arc is pointing to: ORight OLeft OUpward ODownward

*42. A bar magnet is divided into two pieces. Which of the following statements is true about the force between the broken pieces if they face each other with a small separation? Group of answer choices There is an electric attractive force between the broken pieces. There is an electric repulsive force between the broken pieces. There is a magnetic attractive force between the broken pieces. There is a magnetic repulsive force between the broken pieces.

Which of these does not exist?   a. a free electron   b. a magnetic monopole   c. a free proton   d. a free neutron   e. an electromagnetic wave

4) A parti cle of charge 9: 3.2 x 10C and mass -27 6.6 x 10 kg is traveling mls inside of strength cir cumfelence with a speed of 5.0x 10 unitorm magnetic field tra cing a 0.040 T The partizle is that is perpendicular is the to the In agne t2 field. what radivs of such circum feren ce? (m ) 257.8x10-13 wrong 6.16 r0 a) 2.9l m b) 0. 13 m C) 3 52 m d) 0. 26 m 1)8.28 m 中) g) 5.67 m 0.50m h) 4.55m

what is the strength of the magnetic field when a large charged particle of 3.6e-7 -C Pass through at a velocity of 5.6 e 4 m/s and generates a force of 7.2 N?