Magnetic Force/Field. Magnetic Field North/South Pole Opposites attract Unit: Tesla (T) Field lines...
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Transcript of Magnetic Force/Field. Magnetic Field North/South Pole Opposites attract Unit: Tesla (T) Field lines...
![Page 1: Magnetic Force/Field. Magnetic Field North/South Pole Opposites attract Unit: Tesla (T) Field lines point in direction that a North Pole would feel a.](https://reader035.fdocuments.in/reader035/viewer/2022072114/56649ed55503460f94be6092/html5/thumbnails/1.jpg)
Magnetic Force/Field
![Page 2: Magnetic Force/Field. Magnetic Field North/South Pole Opposites attract Unit: Tesla (T) Field lines point in direction that a North Pole would feel a.](https://reader035.fdocuments.in/reader035/viewer/2022072114/56649ed55503460f94be6092/html5/thumbnails/2.jpg)
Magnetic Field
• North/South Pole• Opposites attract• Unit: Tesla (T)
• Field lines point in direction that a North Pole would feel a force
![Page 3: Magnetic Force/Field. Magnetic Field North/South Pole Opposites attract Unit: Tesla (T) Field lines point in direction that a North Pole would feel a.](https://reader035.fdocuments.in/reader035/viewer/2022072114/56649ed55503460f94be6092/html5/thumbnails/3.jpg)
Earth behaves magnetically as if a bar magnet was located near its center
![Page 4: Magnetic Force/Field. Magnetic Field North/South Pole Opposites attract Unit: Tesla (T) Field lines point in direction that a North Pole would feel a.](https://reader035.fdocuments.in/reader035/viewer/2022072114/56649ed55503460f94be6092/html5/thumbnails/4.jpg)
Magnetic Force on a moving Charge
• 1. Charge must be moving• 2. Velocity must have a component perpendicular to the
direction of the magnetic field
Direction of Force is perpendicular to both velocity and field
RHR #1Fingers = B FieldThumb = velocity or currentPalm = Force
![Page 5: Magnetic Force/Field. Magnetic Field North/South Pole Opposites attract Unit: Tesla (T) Field lines point in direction that a North Pole would feel a.](https://reader035.fdocuments.in/reader035/viewer/2022072114/56649ed55503460f94be6092/html5/thumbnails/5.jpg)
Why? (such a weird direction)
![Page 6: Magnetic Force/Field. Magnetic Field North/South Pole Opposites attract Unit: Tesla (T) Field lines point in direction that a North Pole would feel a.](https://reader035.fdocuments.in/reader035/viewer/2022072114/56649ed55503460f94be6092/html5/thumbnails/6.jpg)
What happens near the poles where the charges are not deflected?
![Page 7: Magnetic Force/Field. Magnetic Field North/South Pole Opposites attract Unit: Tesla (T) Field lines point in direction that a North Pole would feel a.](https://reader035.fdocuments.in/reader035/viewer/2022072114/56649ed55503460f94be6092/html5/thumbnails/7.jpg)
Force on a moving ChargeF = B * qo(v sin θ) (N)
• What is the force on a 2μC charge moving at 4.3x104 m/s perpendicular to a 0.4 T magnetic field?
![Page 8: Magnetic Force/Field. Magnetic Field North/South Pole Opposites attract Unit: Tesla (T) Field lines point in direction that a North Pole would feel a.](https://reader035.fdocuments.in/reader035/viewer/2022072114/56649ed55503460f94be6092/html5/thumbnails/8.jpg)
A proton (m= 1.67x10-27 kg, q= 1.6x10-19 C) is moving with a velocity, v= 6.3x10-5 m/s, and enters a region with a magnetic
field of 0.4 T. What is the radius of the circle that the charge will move through? What is the final velocity of the charge?
![Page 9: Magnetic Force/Field. Magnetic Field North/South Pole Opposites attract Unit: Tesla (T) Field lines point in direction that a North Pole would feel a.](https://reader035.fdocuments.in/reader035/viewer/2022072114/56649ed55503460f94be6092/html5/thumbnails/9.jpg)
Force on a current in a wire:F = I l B sin(θ)
• A square loop (10cm) of wire has a current of 5A flowing clockwise and is placed in a 0.4T magnetic field directed into the page. What is the magnitude and direction of the force on each segment of the loop?
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
![Page 10: Magnetic Force/Field. Magnetic Field North/South Pole Opposites attract Unit: Tesla (T) Field lines point in direction that a North Pole would feel a.](https://reader035.fdocuments.in/reader035/viewer/2022072114/56649ed55503460f94be6092/html5/thumbnails/10.jpg)
Torque on a loop:N I A B sin(φ)
• A square loop (10cm) of wire has a current of 2A flowing clockwise and is placed in a 0.75T magnetic field directed to the right. What is the magnitude and direction of the torque on the loop?
![Page 11: Magnetic Force/Field. Magnetic Field North/South Pole Opposites attract Unit: Tesla (T) Field lines point in direction that a North Pole would feel a.](https://reader035.fdocuments.in/reader035/viewer/2022072114/56649ed55503460f94be6092/html5/thumbnails/11.jpg)
A square loop (10cm) of wire has a current of 2A flowing clockwise and is placed in a 0.75T magnetic field as shown below. What is the
magnitude and direction of the torque on the loop?
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