An electric field of strength 1.84 kv/m and a magnetic field of 0.499 T act on a moving electron to produce no net force. If the fields are perpendicular to each other, what is the electron's speed?

6. A particle with a charge of g = 1.6 x 10-19 C and a mass of 1.39 x 10-25 kg enters a mass spectrometer with a velocity of 4.0 x 105 ™. The particle strikes the detector 60 cm from where it entered the magnetic field. What is the strength of the magnetic field? 60 ст v = 4.0 x 105 m = 1.39 x 10-25 kg 4. O O O O O O O O O O O O. O O/O O O Q O O O aO O O OO O O O O Q. O O O O O O O O

A particle with a charge of -1.2 x 10-8 C is moving with instantaneous velocityv = (4.2 x 104 m/s) i + (-3.8 x 104 m/s) j. What are the components of the force exerted on this particle by a magnetic field B = (1.4 T) i + (2.4 T) k ?

The figure below displays a circular loop of conducting wire in a uniform magnetic field pointing into the page. The radius of the loop is 10.0 cm and the magnitude of the field is 0.160 T. You grab points A and B and pull them in opposite directions, stretching the loop until its area is nearly zero, taking a time of 0.170 s to do so. What is the magnitude of the average induced emf in the loop (in mV) during this time? * х * X x х A x * * x K mV X x * x. B * * *