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In Figure 30.7, assume I1 = 2.00 A ami I2 = 6.00 A. What is the relationship between the magnitude F1, of the force exerted on wire 1 and the magnitude of the force exerted on wire F2? (a) F1= 6F2 (b) F1 = 3F2, (c) F1, = F2 (d) F1 = ⅓F2 (e) F1 =
The field
Figure 30.7 Two parallel wires that each carry a steady current exert a magnetic force on each other. The force is attractive if the currents are parallel (as shown) and repulsive if the currents are antiparallel.
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Chapter 30 Solutions
Physics for Scientists and Engineers
- Q1. Two small charged spheres at the end of an insulating cord of length 1 are observed to be in equilibrium as shown in Fig. The wires make small angles 01 and 0O2 with the vertical. (a) If the ratio of masses of the spheres m1/m2=2 and Qı=Q and Q2=2Q, determine the ratio 01/02. (b) Determine the distance between the charged spheres. (For small angles you can use sin0stan0×0)arrow_forwardIn the operating room, anesthesiologists use mass spectrometers to monitor the respiratory gases of patients undergoing surgery. One gas that is often monitored is the anesthetic isoflurane (molecular mass = 3.06 x 10-25 kg). In a spectrometer, a single ionized molecule of isoflurane (charge + e) moves at a speed of 8.82 x 103 m/s on a circular path that has a radius of 0.140 m. What is the magnitude of the magnetic field that the spectrometer uses? Number i Unitsarrow_forwardThe magnitude of the force experienced by charge 3 due to charge 2 If q1 = +5µC, q2 = -10µC, q3 = +2µC and q4 = +4µC %3D q1 4m q2 2m q3 q4 8 m 0.001125 N 0.00901 N 0.0225N -0.0185 N 0.00919 Narrow_forward
- An electron moving with a speed Vo enters a region where an E field points in the same direction as the electron's velocity (towards +x-axis). Determine the velocity of the electron as function of time. Express your answer in terms of the variables Vo, |e|, E, m and t Vx=arrow_forwardAt some instant the velocity components of an electron moving between two charged parallel plates are vx = 1.5 * 10^5 m/s and vy =3.0 * 10^3 m/s. Suppose the electric field between the plates is uniform and given by E: = (120 N/C)jˆ . In unit-vector notation, what are (a) the electron’s acceleration in that field and (b) the electron’s velocity when its x coordinate has changed by 2.0 cm?arrow_forwardA uranium ion and an iron ion are separated by a distance of, R=23.30 nm, as shown in the figure. The uranium atom is singly ionized; the iron atom is doubly ionized. Calculate the distance r from the uranium atom at which an electron will be in equilibrium. Ignore the gravitational attraction between the particles. What is the magnitude ?UFU of the force on the electron from the uranium ion?arrow_forward
- Q1 = 25nC @ P1 (4,-2,7)Q2 = 60 nC @ P2 (-3,4,-2) A) Find the net electric field @ P3 (1,2,3)B) Solve for Eρ, EΦ, Er and Eθarrow_forwardRed blood cells can often be charged. Consider two red blood cells with the following charges: -17.6 pc and +49.8 pC. The red blood cells are 3.31 cm apart. (1 pC = 1 × 10-12 C.) ..(a)..What.is.the magnitude of the force on each red blood cell? Enter a number. alculate the force of a charged particle on another charged particle? N Are the red blood cells attracted or repulsed by each other? attracted repulsed (b) The red blood cells come into contact with each other and then are separated by 3.31 cm. What magnitude of force does each of the red blood cells now experience? What is the net charge of the system? Assuming the cells are identical, how much charge will each have after contact? N Are the red blood cells attracted or repulsed by each other? attracted repulsedarrow_forwardA positively charged particle of mass 1.92 x 10-27 kg initially moves left to right long the x axis at a speed of 4.02 x 103 m/s. It moves into an electric field, which points in the negative x direction, and travels a distance of 0.41 m before coming to rest. What acceleration magnitude does the particle experience? (Ignore gravity) Round your answer to 2 decimal places.arrow_forward
- Two d = 4.40-m nonconducting wires meet at a right angle. One segment carries +2.90 μC of charge distributed uniformly along its length, and the other carries -2.9 µC distributed uniformly along it, as shown in the following figure. K d d ++++ P (a) Find the magnitude and direction of the electric field these wires produce at point P, which is 220.0 cm from each wire. (Assume the +x axis goes to the right.) magnitude direction N/C 。 counterclockwise from the +x direction (b) If an electron is released at P, what are the magnitude and direction of the net force that these wires exert on it? magnitude N direction ° counterclockwise from the +x directionarrow_forwardSuppose Q1 = 4.0 nC and Q2 = 9.0 nC (Figure 1). You may want to review (Pages 631 - 635). Figure + Q₁ 10 cm 5.0 cm Q₂ y 1 of 1 X Part A What is the strength of the electric field at the position indicated by the dot in (Figure 1)? Express your answer with the appropriate units. E = Part B Value 0 = Units What is the direction of the electric field at the position indicated by the dot in (Figure 1)? Specify the direction as an angle measured counterclockwise from the positive x axis.arrow_forwardAt some instant the velocity components of an electron moving between two charged parallel plates are vx-1.6×105 m/s and vy-3.3x10³ m/s. Suppose the electric field between the plates is uniform and given by E = (120N/C).1 . In unit-vector notation, what are (a) the electron's acceleration in that field and (b) the electron's velocity when its x coordinate has changed by 2.2 cm? (a)(i - )j.arrow_forward
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