Principles of Physics: A Calculus-Based Text
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN: 9781133104261
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Chapter 20, Problem 74P

(a)

To determine

The electric potential difference between the wire and the cylinder.

(b)

To determine

The magnitude of electric field.

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A Geiger-Mueller tube is a radiation detector that consists of a closed, hollow, metal cylinder (the cathode) of inner radius ra and a coaxial cylindrical wire (the anode) of radius rb (see figure below) with a gas filling the space between the electrodes. Assume that the internal diameter of a Geiger-Mueller tube is 1.95 cm and that the wire along the axis has a diameter of 0.210 mm. The dielectric strength of the gas between the central wire and the cylinder is 1.30  106 V/m. Use the equation 2?rℓE =qin/?0 to calculate the maximum potential difference that can be applied between the wire and the cylinder before breakdown occurs in the gas. [Image] A cross-section of a Geiger-Mueller tube shows an inner anode of radius rb and charge density ? and an outer cathode of radius ra and charge density −?.
A Geiger-Mueller tube is a radiation detector that consists of a closed, hollow, metal cylinder (the cathode) of inner radius ra and a coaxial cylindrical wire (the anode) of radius rb (see figure below) with a gas filling the space between the electrodes. Assume that the internal diameter of a Geiger-Mueller tube is 3.40 cm and that the wire along the axis has a diameter of 0.205 mm. The dielectric strength of the gas between the central wire and the cylinder is 1.30 106 V/m. Use the equation 2?rℓE =  qin ?0 to calculate the maximum potential difference that can be applied between the wire and the cylinder before breakdown occurs in the gas.
Which of the following statements is not true for a solid, conducting object in electrostatic equilibrium?   a. The electric field inside the conductor is always zero.   b. The electric potential at any point inside the conductor is a constant.   c. The electric field at the surface of the conductor is tangent to the surface everywhere.   d. The electric field at the surface of the conductor is perpendicular to the surface everywhere.   e. Any excess charge on the conductor resides entirely on the surface.

Chapter 20 Solutions

Principles of Physics: A Calculus-Based Text

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