Which of the following electrostatic fields could exist in a finite region of space that contains no charges? (In these expressions, A is a constant, i, j and k are unit vectors pointing in the x, y and z direction, respectively.) a. A (2xy i - x k) b. A (xz i + xz j) с. А хуz (i + d. A (-y j+ z k) е. А хуz i d b
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- Two identical spheres of mass m and charge q. hang from non-conducting strings of length L. At equilibrium each string makes an angle 0 with the vertical as shown in the figure. If g is the gravitational acceleration, which of the following is correct? L. O a. mg tan 0 = 4w 41 sine mg Ob. cos e O C. mg sin 0 = 4wen AL cos e O d. mg cos 0 = 4wo L sin e O e. mg = 4men LPlease answer subparts A&B with the step solution. Im needed in 30 minutes thank u0.5m -0.5m +X -0.5m 0.5m 0.5m --0.5m +2 A positive charge q = 1.1C is moving along the +y-axis.If the magnitude of the field at point (a, 2a, *) is За 2 26 B = bi – k, what's the magnitude of - 3 the velocity of the charge (in m/s)? Only give the numerical value. The values of a and b are a = 0.8m and b = 9.1T, respectively.
- Two small identical conducting spheres are placed with their centers 0.42 m apart. One is given a charge of 10 ✕ 10-9 C, the other a charge of -14 ✕ 10-9 C. (a) Find the electrostatic force exerted on one sphere by the other. N(b) The spheres are connected by a conducting wire. Find the electrostatic force between the two after equilibrium is reached. NPlease do it on urgent basis.1. A small charge (q = 5µC) is moving through a uniform B-field (0.6 T) at a 30° angle to the field. The speed of the particle is 6.0x10³ m/s. What is the force on the particle? A. 0.002 N B. 0.006 N C. 0.009 N D. 0.012 N
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