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Questions and Answers
What is the primary purpose of a capacitor in a camera's flash?
What is the SI unit for measuring capacitance?
What is the primary application of a capacitor in a radio?
What is the role of a coupling capacitor?
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What factor may affect the capacitance of a capacitor if it is not in a vacuum?
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What is the relationship between capacitance (C), charge (q), and potential difference (V)?
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What is the purpose of a Geiger-Mueller (GM) counter?
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Which equation is used to calculate the work needed to charge a capacitor?
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What type of capacitor configuration is used in a GM counter?
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What happens when ionizing radiation passes through the GM counter tube?
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What is the purpose of the cathode and anode in a GM counter?
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What is the purpose of using materials with high atomic numbers for the walls of a GM counter?
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What is the formula for the potential energy of a charged capacitor?
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What is the purpose of placing a dielectric material between the conducting plates of a capacitor?
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What is the symbol used to represent the dielectric constant?
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What is the formula for calculating the dielectric constant?
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Which material from the table has the highest dielectric constant at 20°C?
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What is the relationship between the potential energy stored in a capacitor and the work done to charge the capacitor?
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What is the relationship between the electric field when the dielectric is absent ($E_0$) and present ($E_A$), and the dielectric constant (K)?
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Which expression correctly represents the capacitance of a parallel-plate capacitor in terms of the dielectric constant (K), permittivity of free space ($\epsilon_0$), area of the plate (A), and distance between the plates (d)?
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What is the relationship between the surface charge density ($\sigma$) and the electric field ($E_0$) for a capacitor in vacuum?
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If the dielectric constant (K) of a material is greater than 1, what can be said about the capacitance of a parallel-plate capacitor with that material as the dielectric?
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What is the unit of the permittivity of free space ($\epsilon_0$)?
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If the area of the plates in a parallel-plate capacitor is increased, while keeping the distance between the plates and the dielectric material constant, what happens to the capacitance?
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What is the relationship between the surface charge density and the distance between the plates of a capacitor?
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What is the relationship between the capacitance of a parallel plate capacitor and the distance between the plates?
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What happens to the leaves of the electroscope connected to one of the plates of a charged capacitor?
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What happens to the capacitance of a parallel plate capacitor when the plates are moved farther apart?
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What is the unit of the permittivity of free space, $\epsilon_0$?
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What is the purpose of an electroscope in the context of a capacitor?
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