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Chapter 26: Q. 18 (page 738)
How much charge does a battery transfer from the negative to the positive terminal while doing of work?
The charge transferred is
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The electric potential along the x-axis is , where is in meters. What is at (a)role="math" localid="1649581712352" and (b) role="math" localid="1649581719374" ?
Figure Q26.8 shows a negatively charged electroscope. The gold leaf stands away from the rigid metal post. Is the electric potential of the leaf higher than, lower than, or equal to the potential of the post? Explain.
How much work does the electric motor of a Van de Graaff generator do to lift a positive ion if the potential of the spherical electrode is ?
A vacuum-insulated parallel-plate capacitor with plate separation has capacitance . What is the capacitance if an insulator with dielectric constant and thickness is slipped between the electrodes without changing the plate separation?
You need to construct a 100 pF capacitor for a science project. You plan to cut two L * L metal squares and insert small spacers between their corners. The thinnest spacers you have are 0.20 mm thick. What is the proper value of L?
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