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LV vall се. Part A ger How much energy is stored in the electric field of a 50-µm-diameter cell with a 7.0-nm-thick cell whose dielectric constant is 9.0? lel- Express your answer with the appropriate units. HÀ

LV vall се. Part A ger How much energy is stored in the electric field of a 50-µm-diameter cell with a 7.0-nm-thick cell whose dielectric constant is 9.0? lel- Express your answer with the appropriate units. HÀ

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I Review A typical cell has a membrane potential of -70 mV, meaning that the potential inside the cell is 70 mV less than the potential outside due to a layer of negative charge on the inner surface of the cell wall and a layer of positive charge on the outer surface. This effectively makes the cell wall a charged capacitor. Because a cell's diameter is much larger than the wall thickness, it is reasonable to ignore the curvature of the cell and think of it as a parallel- plate capacitor. Part A How much energy is stored in the electric field of a 50-um-diameter cell with a 7.0-nm-thick cell wall whose dielectric constant is 9.0? Express your answer with the appropriate units. HẢ ? -17 Uc = 3,905 • 10 J Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining
Transcribed Image Text:I Review A typical cell has a membrane potential of -70 mV, meaning that the potential inside the cell is 70 mV less than the potential outside due to a layer of negative charge on the inner surface of the cell wall and a layer of positive charge on the outer surface. This effectively makes the cell wall a charged capacitor. Because a cell's diameter is much larger than the wall thickness, it is reasonable to ignore the curvature of the cell and think of it as a parallel- plate capacitor. Part A How much energy is stored in the electric field of a 50-um-diameter cell with a 7.0-nm-thick cell wall whose dielectric constant is 9.0? Express your answer with the appropriate units. HẢ ? -17 Uc = 3,905 • 10 J Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining
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