The Figure Shows a Velocity Selector That Can Be Used

question 21

Multiple Choice

The figure shows a velocity selector that can be used to measure the speed of a charged particle.A beam of particles is directed along the axis of the instrument.A parallel plate capacitor sets up an electric field E,which is oriented perpendicular to a uniform magnetic field B.If the plates are separated by 2.0 mm and the value of the magnetic field is 0.60 T,what voltage between the plates will allow particles of speed 5.0 × 10⁵ m/s to pass straight through without deflection?

• A)600 V
• B)1900 V
• C)3800 V
• D)190 V
• E)94 V

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Definitions:

Standardized Z Values

Values resulting from the standardization process that measures the number of standard deviations a data point is from the mean of its distribution.

Probability

An evaluation of event occurrence likelihood, represented as a numerical value ranging between 0 and 1.

Standard Normal Table

A reference table that provides the area under the curve of the standard normal distribution, often used to find probabilities and critical values.

Mutually Exclusive Events

Two or more events that cannot occur at the same time, making it impossible for them to happen simultaneously in any given trial.