A straight wire carrying a 9.0 A current is in a uniform magnetic field oriented at right angles to the wire. When 75 cm of wire is in the field, the force on the wire is 1.2 N. What is the strength of the magnetic field (B)? HINT: F=I.L.B

• = 0.18 N

• = 0.18 T

• = 0.18 Cm

• = 0.18 

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

force on a conductor carrying a current = 1.32 N, current = 4 A, length = 3.88 m, magnetic flux density = ?

• 0.0851

• 1.17

• 0.317

• 0.106

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

magnetic flux density = 0.45 T, current = 1.37 A, length = 1.9 m, force on a conductor carrying a current = ?

• 0.0851

• 1.17

• 0.317

• 0.106

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

force on a conductor carrying a current = 5.37 N, magnetic flux density = 3.91 T, current = 4.33 A, length = ?

• 0.0851

• 1.17

• 0.317

• 0.106

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

force on a conductor carrying a current = 2.43 N, magnetic flux density = 2.69 T, length = 8.5 m, current = ?

• 0.0851

• 1.17

• 0.317

• 0.106

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which of the following will not influence the magnetic force acting on a current-carrying conductor?

• The current flowing in the conductor

• Length of the conductor

• Magnetic field strength

• The speed of the conductor

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

What is the magnetic force exerted on a 3.50 𝑚 length of wire carrying a current of 1.20 𝐴 perpendicular to a

magnetic field of 0.890 𝑇?

• 6.5 N

• 4.25 N

• 3.74 N

• 1.75 N

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

A 2.0 m wire segment carrying a current of

0.60 A oriented parallel to a uniform magnetic field of

0.50 T experiences a force of what magnitude?

• 0

• 0.15 N

• 0.30 N

• 6.7 N

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What is the nature of the force responsible in the operation of a DC motor?

• magnetic

• gravitational

• electrical and magnetic

• electrical

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

A wire of length 2 m carries a current of 5 A and is placed in a magnetic field of 0.3 T. What is the force experienced by the wire?

• 3 N

• 0.3 N

• 1.5 N

• 0.6 N

Tags

NGSS.HS-PS3-5