Problem and Solution Magnet [ Edition I ]

1. (A) What is the force on a wire carrying permeter 9.8 A current when perpendicular to the magnetic field of 0.8 T? (B) What if the angle between the wire and the field of 45 ^0?

2. 1.5 m wire carrying a current 6.5 A horizontally oriented at a point on the earth's surface, the angle down Earth's magnetic field makes an angle of 40 ⁰ to the wire. Estimate the magnetic force on the wire caused by the Earth's magnetic field of 5.5 x 10 ^-5 T at this point.

3. How much current flowing in the wire 4.2 m if the maximum force of 0.9 N at him when placed in a uniform field of 0.8 T?

4. Force on the wire carrying 25 A reaches a maximum 4.14 N when placed between the poles of a magnet surface. If the surface of the polar surface diameter of 22 cm, approximately how much stronger the magnetic field?

5. Determine the magnitude and direction of the force on a moving electron 3.58 x 10 ⁶ m / s horosontal westernized vertical magnetic fields up to 1.3 T large.

6. Describe the trajectory of the electron is fired vertically upwards at a rate of 1.8 x 10 ⁶ m / s to a uniform magnetic field of 0.25 T are away from the observer?

7. Find the direction of the force on a negative charge for each diagram in the figure, where v is the velocity of the charge and B is the magnetic field.

8. Determine the direction of B each individual case in the picture, where the F express the force on the positively charged particle moving with velocity v?

9. Alpha particles with charge q = +2 e and mass m = 6.6 x 10 ^-27 kg emitted from a radioactive source at a rate of 1.6 x 10 ⁷ m / s. How strong magnetic field required to deflect the trajectory of particles is a circle with radius r = 0.25 m?

10. An electron having the greatest force at the time of moving 1.8 x 10 ⁶ m / s in a magnetic field as it moves towards the south. Style has a great way upward and 2.2 x 10 ^-22 N. What is the magnitude and direction of the magnetic field?