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 Electrostatic Potential and Capacitance 26 Flashcards |
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What is the primary function of a capacitor? |
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The primary function of a capacitor is to store electric charge and energy in the form of electric potential energy.  |
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A capacitor is represented in a circuit by which symbol? |
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A capacitor is represented by the symbol:  |
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The unit of capacitance is ___ and its dimensional formula is ___ . |
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The unit of capacitance is farad and its dimensional formula is [M-1L-2I2T4]. |
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1 µF is equal to ___ farads. |
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1 µF is equal to 10-6 F. |
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What effect does a dielectric material with greater permittivity have on capacitance? |
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It increases the capacitance by allowing more field flux.  |
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Fill in the Blank |
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Q: I’m a surface you can walk along forever without doing work against E. Who am I? |
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An equipotential surface |
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True/False |
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False. E is perpendicular (normal) to equipotentials. |
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Field just outside a charged conductor with surface density σ is |
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Write the potential energy and torque for a dipole p in uniform E. |
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Write U of a charged capacitor in three equivalent forms. |
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Does moving a charge entirely on one equipotential surface require work against the field? |
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No ΔV = 0 |
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True/False |
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True |
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Completed! Keep practicing to master all of them. |
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