Q: Example 29.6 discusses the external force that must be applied
Example 29.6 discusses the external force that must be applied to the slidewire to move it at constant speed. If there were a break in the left-hand end of the U-shaped conductor, how much force would...
See AnswerQ: A uniform bar has mass 0.0120 kg and is 30
A uniform bar has mass 0.0120 kg and is 30.0 cm long. It pivots without friction about an axis perpendicular to the bar at point a (Fig. P27.72). The gravitational force on the bar acts in the â...
See AnswerQ: It was shown in Section 27.7 that the net force
It was shown in Section 27.7 that the net force on a current loop in a uniform magnetic field is zero. The magnetic force on the voice coil of a loudspeaker (see Fig. 27.28) is nonzero because the mag...
See AnswerQ: The lower end of the thin uniform rod in Fig. P27
The lower end of the thin uniform rod in Fig. P27.74 is attached to the floor by a frictionless hinge at point P. The rod has mass 0.0840 kg and length 18.0 cm and is in a uniform magnetic field B = 0...
See AnswerQ: It was shown in Section 27.7 that the net force
It was shown in Section 27.7 that the net force on a current loop in a uniform magnetic field is zero. But what if B S is not uniform? Figure P27.75 shows a square loop of wire that lies in the xy-pla...
See AnswerQ: An electron moves at 0.100c as shown in Fig.
An electron moves at 0.100c as shown in Fig. E28.3. Find the magnitude and direction of the magnetic field this electron produces at the following points, each 2.00 mm from the electron: Fig. E28.3:...
See AnswerQ: The neutron is a particle with zero charge. Nonetheless, it
The neutron is a particle with zero charge. Nonetheless, it has a nonzero magnetic moment with z-component 9.66 × 10-27 A ∙ m2. This can be explained by the internal str...
See AnswerQ: A circular loop of wire with area A lies in the xy
A circular loop of wire with area A lies in the xy-plane. As viewed along the z-axis looking in the z-direction toward the origin, a current I is circulating clockwise around the loop. The torque prod...
See AnswerQ: You are using a type of mass spectrometer to measure charge-
You are using a type of mass spectrometer to measure charge-to-mass ratios of atomic ions. In the device, atoms are ionized with a beam of electrons to produce positive ions, which are then accelerate...
See AnswerQ: A particle with charge 2.15 µC and mass 3.
A particle with charge 2.15 µC and mass 3.20 × 10-11 kg is initially traveling in the +y-direction with a speed v0 = 1.45 × 105 m/s. It then enters a region cont...
See Answer
