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# Workbook four. 7 Alternatives

4. six Review

1 .

In Alberta the north end of your compass needle points to (approximately) the geographic a.

north

b.

southern region

c.

east

d.

western

2 .

A great negatively charged droplet journeys at a speed of 2. 0 times 103 m/s. The field(s) that serves on this droplet is/are

a.

electrical only

b.

electrical and magnet only

c.

magnetic and gravitational only

d.

electric powered, magnetic, and gravitational

three or more.

A incurred particle experience a permanent magnet force only if it

a.

moves in the same way as the magnetic field

b.

passes across magnetic discipline lines

c.

goes against gravity

m.

moves against an electric discipline

4.

A proton column travels by a constant velocity to the proper as proven below. Make use of a drawing to assist describe the magnetic discipline created by beam. [Appendix A] p+

5.

The electromagnet for the right provides its poles as classed.

a. Draw in the battery (between terminals A and B) so the magnet's polarity will be since shown inside the diagram. [Appendix A] b. Draw the magnetic field lines made around the electromagnet. [Appendix A]

10

S

In

A

W

A

6th.

Three debris (A is known as a neutron, B is an electron

and C is a proton), enter a permanent magnet field (B) at

the same speed while shown inside the diagram. Identify

the path the molecule will be forced. Explain

C

W

A вЂ“ none (neutral)

B- none (not crossing any field lines)

C вЂ“ Pressured out of the webpage

7.

Determine the magnet field power acting on a positron exploring at several. 31 x 107 m/s experiences a magnetic pressure of a few. 38 times 10-13 In. [0. 0460T]

The magnet field strength is 0. 0460T.

eight.

A light of first particles is accelerated around a potential difference of 7. 40 KV. They may be then approved perpendicularly by using a magnetic field and turn a circle which has a radius of 15. 1 cm. Decide the permanent magnet field durability. [0. 117 T]

The magnetic discipline strength is 0. 117 T.

12

M

9.

A 6. 0 cm extended copper line has a mass of your five. 04 g and is carrying a current of 14. 15 A verticle with respect to a consistent magnetic discipline. This apparatus is placed within a strong magnet field and the wire can be suspended motionless in the air.

a. Draw a free-body picture for the wire. [Appendix A]

m. Calculate the magnetic discipline strength. [0. 058 T]

The magnet field power is 0. 058 To.

10.

A bar magnetic is relocated relative to a coil, because depicted in the diagrams listed below. Determine the direction with the electron flow through the galvanometer for each situation. [Appendix A] a.

w.

motion of coil

D

motion of magnet

D

S

G

G

Via left to right.

14.

S

Via left to right.

A mass spectrometer is used to look for the mass of triply charged negative ions. The ions were first accelerated through a potential big difference of 90. 0 Versus, and then inserted into a 75. 0 mT magnetic discipline where they have a radius of curvature of 11. 6 cm. Identify the mass of the unfamiliar ions. [1. seventy six x 10-25 kg]

The mass of the ion is 1 . 76 times 10-25 kilogram.

13

Use the information below to resolve question doze.

One end of an straightener bar is definitely coiled with insulated wires and

placed on a 10 Sixth is v AC power. The other end of the

flat iron bar is definitely coiled with twice the length of wire and is

attached to a voltmeter since shown in the diagram

doze.

Using the diagram, explain how electrical power is

induced inside the secondary coils even though no

current may transfer from your primary. [Appendix A]

main coil

secondary coil

Sixth is v

10 Versus

The changing electric field produces a changing magnetic discipline in the principal coil which in turn produces a changing electric discipline leading to a changing magnetic field in the secondary coils. This allows electric power charge inside the wire to get influenced by simply an activated voltage that will cause a examining to register inside the secondary coils voltmeter.

14

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