An electron moving in the direction of the +x-axis enters a magnetic field. If the electron experience a magnetic deflection in the -y direction, the direction of the magnetic ar in this an ar points in the direction of the


You are watching: What is the direction of the magnetic field b⃗ net at point b?

-z-axisUse RHR: thumb in the direction of you , guideline left and also middle down. Or thumb -y and also wrap down. IX-j=-k
Ions having actually equal charges but masses of M and also 2M are sped up through the very same potential difference and then enter a uniform magnetic field perpendicular to your path. If the heavier ions follow a one arc that radius R, what is the radius of the arc complied with by the lighter?
R/Sqrt(2)so, r=mv/qb, v=velocity1/2mv^2=eV V=potential v= sqrt(2eV/m)R=(Sqrt(2m2eV))/qbR1=(Sqrt(m2eV))/qb divide equation this through R equation
A vertical wire carries a existing vertically increase in a an ar where the magnetic field vector points toward the north. What is the direction of the magnetic force on this present due come the field?
toward the west-rhr finger in current direction and also curl toward field vector, thumb points in direction of magnetic force
The very same amount of current III is flowing through two wires, labeling 1 and 2 in the figure, in the directions shown by the arrows. In this difficulty you will identify the direction of the net magnetic ar B⃗ netB→netB_net_vec at each of the indicated points (A - C)What is the direction the the magnetic ar B⃗ netB→netB_net_vec at suggest A? Recall that the currents in the 2 wires have equal magnitudes.What is the direction the the magnetic ar B⃗ netB→netB_net_vec at allude B?What is the direction of the magnetic ar B⃗ netB→netB_net_vec at point C?
B⃗ netB→netB_net_vec points out of the display at A.⃗B net=0B→net=0 in ~ B.B⃗ netB→netB_net_vec points into the screen at C.
The bent cable circuit displayed in the figure (Figure 1) is in a region of room with a uniform magnetic ar in the +z direction. Present flows v the circuit in the direction indicated. Note that segment 2 and also 5 room oriented parallel to the z axis; the other pieces room parallel to either the x or y axis.Determine the direction of the magnetic force along segment 1, i m sorry carries current in the -x direction.Determine the direction that the magnetic force along segment 2, i beg your pardon carries present in the -z direction.Determine the direction that the magnetic force along segment 3, which carries current in the +y direction.Determine the direction of the magnetic force along segment 4, i m sorry carries current in the +x direction.Determine the direction the the magnetic force along segment 5, i beg your pardon carries existing in the +z direction.Determine the direction of the magnetic force along segment 6, i beg your pardon carries current in the +x direction.Determine the direction that the magnetic pressure along segment 7, i beg your pardon carries current in the -y direction.
Ampère"s legislation is regularly written ∮B→(r→)⋅dl→=μ0*Iencl.A.) The integral top top the left isB.) What physical home does the prize IenclIenclI_encl represent?C.) The one on the integral means that B→(r→) must be integratedD.) i m sorry of the following options of path permit you to usage Ampère"s law to analytically uncover B→(r→)?E.) Ampère"s law deserve to be supplied to analytically discover the magnetic field roughly a straight current-carrying wire.F.) Ampère"s law have the right to be offered to analytically discover the magnetic field at the facility of a square loop transferring a constant current.G.) Ampère"s law have the right to be supplied to analytically uncover the magnetic field at the center of a circle developed by a current-carrying conductor.H.) Ampère"s law can be provided to analytically uncover the magnetic field inside a toroid. (A toroid is a doughnut shape wound uniformly with countless turns the wire.)
A.) the heat integral follow me the closed loop.B.) The net present through the loopC.) along any closed route that friend choose.D.) The path need to pass with the allude r→r_vec. And The path must have sufficient symmetry so that B→(r→)⋅dl→ is constant along big parts that it.E.) trueF.) falseG.) falseH.) true
A current carrying loop of cable lies flat on a table top. As soon as viewed indigenous above, the present moves approximately the loop in a counterclockwise sense. (a) for points external the loop, the magnetic field caused by this current(b) for points within the loop, the magnetic ar caused by this current
Two lengthy parallel wires put side-by-side ~ above a horizontal table carry identical dimension currents in the opposite directions. The wire on your appropriate carries existing toward you, and the cable on your left carries current away from you. Indigenous your point of view, the magnetic field at the point exactly midway in between the 2 wires
Two really long parallel wires in the xy-plane, a street 2aaa apart, room parallel to the y-axis and also carry equal currents III as displayed in the figure. The +z direction points perpendicular come the xy-plane in a right-handed coordinate system. If both currents circulation in the +y direction, which among the graphs presented in the figure below best represents the z component of the network magnetic field, in the xy-plane, as a role of x? (Caution: this graphs room not magnetic ar lines.)
A really long, solid, conducting cylinder the radius R carries a present along its size uniformly distributed throughout the cylinder. Which one of the graphs presented in the figure most accurately defines the size B the the magnetic field developed by this existing as a function of the street r native the central axis?
A circular loop of cable lies in the plane of the paper. Boosting magnetic field points the end of the paper. What is the direction the the induced present in the loop?
The long straight wire in the number carries a current III the is decreasing through time at a constant rate. The circular loops A, B, and also C every lie in a plane containing the wire. The induced emf in each of the loops A, B, and also C is such that
loop A has actually a counter-clockwise emf, loop B has actually no induced emf, and loop C has a clockwise emf.Submit
A circular metal ring is situated over a long straight wire, as presented in the figure. The straight wire has a current flowing to the right, and the current is increasing in time at a continuous rate. I m sorry statement is true?
A resistor and perfect inductor are linked in series to suitable battery having actually a constant terminal voltage V 0.(a) in ~ the moment contact is made v the battery, the voltage across the resistor isb) in ~ the moment contact is made with the battery, the voltage across the inductor is
Which the the following statements is true around the inductor in the number in the trouble introduction, whereby I(t) is the current through the wire?Now think about the impact that applying second voltage come the inductor will have on the current I(t) currently flowing with it (imagine the the voltage is applied to finish A, while finish B is grounded). Which among the adhering to statements is true?


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If dI(t)/dt is positive, the voltage at finish A will necessarily be better than that at finish BIf V is positive, then I(t) might be optimistic or an unfavorable while dI(t)/dt will necessarily it is in positive.
A present of I1 is brought into the paper by the cable labeled v the X come the right. A existing of I2 is lugged out the the record by the wire labeled with the dot. The magnitude of the integral ∮