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1. The speed of an electron is given by the vector v = (2.5i-45j +3.5k)km/s and it is in a magnetic field given by B=

1. The speed of an electron is given by the vector v = (2.5i-45j +3.5k)km/s and it is in a magnetic field given by B= (400i -600j)uT. Determine the magnetic force, in vector form, acting on electron 2. A wire 25 cm long carries a current of 3.5 A in a magnetic field of 20 mT. The angle between the current and the magnetic field is 35. Find the magnetic force acting on wire 3. A rectangular coil of wire has an area of ??625 cm. The coil is in a 40 uT field carrying a current of 50 mA. The number of turns of the coil is 150. Determine: (a) The magnetic torque on the coil when it rotates through an angle of 40 with respect to its axis.(b) The magnetic dipole moment

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1. La velocidad de un electron esta dada por v = (2.5 1 - 4.5 j + 3.5 k) km/s y se encuentro en un campo magnetico dado por B = (400 1- 600 ])HT. Determine la fuerza magnetica, en forma vectorial, que actua en el electron. 2. Un alambre de 25 cm de largo conduce una corriente de 3.5 A en un campo magnetico de 20 mT. El angulo entre la corriente y el campo magnetico es 350. Halle la fuerza magnetica actuando en el alambre. 3. Una bobina rectangular de alambre tiene un area de 625 cm2. La bobina se encuentro en un campo magnetico de 40 uT y transporta una corriente de 50 mA. El numero de vueltas de la bobina es 150. 10 puntos Determine: (a) El torque magnetico en la bobina cuando gira a un angulo de 40 con respecto a su eje. (b) El momento dipolar magnetico

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