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| The electric potential at x=5.00m and y=3.00m is 120V and the electric potential at x=7.50m and y=8.00m is 180V. The electric field is along the axis between the two point and uniform. What is the magnitude of the electric field in N/C in this region? Hint: in a uniform E field the relationship between the field magnitude and change in potential is ΔV=−Ed. Use the Pythagorean theorem to find the separation between the two points. |
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| The distance between two parallel plates is increased while they remain hooked to a battery. The energy stored in the capacitor will |
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| A charged capacitor stores energy U. Without connecting this capacitor to anything, dielectric having dielectric constant K is now inserted between the plates of the capacitor, completely filling the space between them. How much energy does the capacitor now store? |
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| A parallel plate capacitor is charged to total charge Q and battery removed. A slab of material with dielectric constant K is inserted between the plates. The charge stored in the capacitor |
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| When two or more capacitors are connected in series across a potential difference |
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A) The potential difference across the combination is the algebraic sum of the potential differences across the individual capacitors.
B) Each capacitor carries the same amount of charge.
C) The equivalent capacitance of the combination is less than the capacitance of any of the capacitors.
D) All of the above choices are correct |
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