Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Question: In a Wien velocity filter, perpendicular electric and magnetic fields are applied to moving charges so that only those charges with velocity v = E/B pass through the fields without deflection. Figure illustrates a complementary situation: charged particles moving through a conducting material (such as electrons moving through a copper wire) are confined by the walls of the conductor so that they move in straight lines parallel to the axis of the conductor. A magnetic field applied perpendicular to the motion causes the moving negative charges to separate from positive charge and produce an electric field within the conductor, perpendicular to the current, that offsets the magnetic force and keeps the charges moving in straight lines along the conductor. This induced electric field is called the Hall Effect. (Because blood is a conducting fluid, surgeons can measure blood flow rates using the Hall Effect.)
a. The figure shows electrons moving along a long wire. What is the direction of the electric field E within the wire? (Make a sketch.)
b. Suppose the wire has a square cross section with width and height equal to 1 cm. If the velocity of the charges is 5 mms-1, and B = 2.0 T, what potential difference would appear across the wire? This potential difference can be measured with a voltmeter.
c. If you measure current with an ammeter, you cannot distinguish between positive charges flowing through the meter in one direction, and negative charges flowing in the opposite sense. But the Hall Effect allows you to determine both the polarity and the direction of motion of the charges. Explain this: imagine positive charges moving opposite to the direction shown in the figure. What happens to the induced E field?
Fig. - The half effect on charged particles moving through a conductor.
question for an rlc circuit with a resistance of 11.0 k a capacitance of 9.0 f and an inductance of 26.0 h what
An engine absorbs 1695 J from a hotreservoir and expels 1204 J to a coldreservoir in each cycle. What is the power output of the engine if each cycle lasts for0.302 s
What is the angular velocity of the merry-go-round plus
Consider an airplanr wing area 20m^2. If the airflow speed over the top of the wing is 200m/s, what is the lift force on the wing at sea level at 0 degrees celsius
An electron that has a horizontal initial speed of 4.50 x 106 m/s enters a region that has an electric field of 120V/m pointing vertically upward. find what is the vertical displacement of the electron
A 2.00-nF capacitor with an initial charge of 5.83 µC is discharged through a 2.26-kohm resistor. What is the (magnitude of the) maximum current in the resistor
A 77.0 kg man floats in fresh water with 3.00% of his volume above water when his lungs are empty, Calculate the volume of air he inhales--called his lung capacity--in liters
q1. a good baseball pitcher can throw a baseball toward home plate at 98 mih with a spin of 1590 revmin. how numerous
What average power can be supplied by this circuit
Two like charges of the same magnitude are 1.0 mm apart. If the force of repulsion they exert upon each other is 5.0 N, What is the magnitude of each charge
"Asymptotic Normality of an estimator is an extension of the Central Limit Theorem for functions of the sample beyond the sample mean." Discuss.
An object of mass m is on a frictionless table rotating with a given tangential speed vo with a radius of string ri. Find the final speed of the object after the rope was pulled down the distance d
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd