Notebook FV2 - Forces and vectors

°8. A circular loop is conducting current in a counter-clockwise direction as shown. wire carn A number of changes to this initial situation are described in 1-6 below. Select from choices a-e how each change will affect the magnetic field at the center of the loop.

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3. Two straight wires are fixed in place near one another, and carry equal currents io in opposite directions. a) Sketch the two contributions to the net magnetic field at point P. 2d ig out of 2d page into page b) Add these vectors graphically to obtain a sketch of the net magnetic field vector at P. c) Calculate the magnitude and direction of the magnetic field at P. * end view

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From the experiment on tracing the magnetic field lines of the bar magnet, we understand the following: 1. The magnetic field lines of the earth is directed from to which was shown by the compass at the start of the experiment. 2. The field lines of the bar magnet was traced using following the north + of the compass needle. 3. The magnetic field of the bar magnet (outside) starts at + land ends at but we know that by nature the magnetic field lines are 4. are points where the field lines of the bar magnetic and earth's field are equal and opposite.

Assume that I = 4.0 A andd = 2.5 cm Part A What is the strength of the magnetic field at the center of the loop in the figure? (Figure 1) Express your answer to two significant figures and include the appropriate units. ? B = 0.000064 You have already submitted this answer. Enter a new answer. No credit lost Try again. Submit Previous Answers Request Answer Part B What is the direction of the magnetic field at the center of the loop? Figure out of the screen 1 of 1 into the screen Previous Answers V Correct Provide Feedback d

The right half of the square loop of wire shown in (Figure 1) is in a 0.45 T magnetic field directed into the page. The current in the loop is 1.5 A in a clockwise direction Part A What is the magnitude of the force on the loop? Express your answer with the appropriate units. µA ? F = Value Units Submit Request Answer Part B In which direction does this force act? O to the left O to the right upward downward Figure < 1 of 1 Submit Request Answer Provide Feedback 5.0 cm X X X

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can you answer the question down by looking at pic firstly. thank you. a) Find the force on the electron due to the magnetic and electric filed. b) Calculated the acceleration of the proton under the magnetic and electric field.

Help me to solve the sub-part (A) only, only typing is needed

The figure at right shows two current carrying wires, which are oriented perpendicular to the page. The currents are the same magnitudes but • A opposite directions as indicated by the usual convention. wire 1 wire 2 What is the direction of the the net magnetic field vector at point A. A. С. D. E. F. into the out of the page page B.

question 1 image is attached as an image.

The right half of the square loop of wire shown in (Figure 1) is in a 0.85 T magnetic field directed into the page. The current in the loop is 1.1 A in a clockwise direction. 1. What is the magnitude of the force on the loop?  Express your answer with the appropriate units. 2. In which direction does this force act? A. to the left B. upward C. downward D. to the right

Figure 1 shows a particle with a positive charge q and mass m moves through a velocity selector consisting of a magnetic field and an electric 2. field. The electric field points downward, as shown in Figure 1. E +q Figure 1 a) In which direction must point for the magnetic force to oppose the electric force? b) Suppose the electric field is turned off. Now, affected only by the magnetic field, the particle moves in a circular orbit. Beginning with official starting equations, find an expression for the radius of the particle's orbit.

The direction of current in a conducting wire is shown in the figure below. What is the direction of the magnetic field that produces the magnetic force as shown? Fin I out of the page a. b. to the left c. to the right d. upward

Two current-carrying loops are arranged so that they form concentric circles as shown in the figure below. The bigger loop (radius = 0.80 m) has a 5.00 A-current passing through it. The smaller loop has a radius of 0.40 m. 1. Draw the magnetic field (use 2 different colors) produced by each current carrying loop. 2. Determine the magnitude of the current in the inner loop so that the resulting net magnetic field at the center of the concentric loops will be zero. (Hint: This will only happen when the directions of the magnetic field produced by each loop are opposite in direction)

I don't understand how to solve this how do I do it

​Then the ions enter to velocity selector region. In this region both electric and magnetic fields are applied. Next theyenter into the mass spectrometer region. In this region there is magnetic field different than the previous region. Depending of the charge of the ions, they travel in a circular path with a well-defined radius either to the left or to the right. 1.The mass difference between two isotopes is sometimes just a neutron mass. The spectrometer should separate them very well. For such an isotope combination, the difference in radius should be around 1 cm. That is . In order to achieve this, choose a magnetic field with a magnitude in Tesla (maximum magnetic field you can obtain from a conventional magnet is around 2.5 T so be far away from this value) and choose the direction also. Then determine the velocity of isotope you need. Last calculate radius r of a smallest isotope. 2.In order to produce this magnetic field, determine the current and number of turns, radius and…

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A 1.85 m long metal bar having a weight of 3.50 N and a resistance of 10.0 S2, rests horizontally on conducting wires connecting it to the circuit shown in (Figure 1). The bar is in a uniform, horizontal, 1.65 T magnetic field and is not attached to the wires in the circuit. Figure a = Submit Request Answer Part B What is the magnitude of the acceleration of the bar just after the switch is closed? Express your answer in meters per second squared to three significant figures. 15. ΑΣΦ to the left to the right 120.0 V downward upward Submit T 25.0 Ω www Request Answer 10.0 Ω What is the direction of the acceleration of the bar just after the switch is closed? S ? 1 of 1 m/s²

Please please solve accurate and exact please this is very important for me. I will rate it up if accurate

In the figure below we have a wire loop with resistance R. in the gray area, magnetic field is constant and equal to B Figure1 We assumed that wire loop in the figure below has a resistance R so the current generated is : I=vBh/R But what if R=0 (perfectly conductive material) What happens when we move the loop with speed v?

How do I solve the attached physics question about magnetic forces and fields?

a) The ring below represents a circular ring of wire with current going to the right in the front and then going back into the page (ask me if you're not sure you understand what the picture is). On one or both of the views, sketch the magnetic field lines that this object with current creates. Front View Overhead View current current b) Considering the field lines you drew above, explain why this object (a loop of wire) is often called a magnetic "dipole"

2.) The diagram below shows a proton moving through an external magnetic field at a particular instant of time. a.) At the instant shown, would the magnetic field be exerting any force on the proton? If so, in which direction? Sketch the force vector on the diagram. b.) How would your answers change if the particle were an electron