Question: can you guys please answer this conceptual question I am struggling to answer Conceptual Questions 1. Two separated electrodes are charged to 1Q. If the
can you guys please answer this conceptual question I am struggling to answer


Conceptual Questions 1. Two separated electrodes are charged to 1Q. If the amount of charge is doubled, is the capacitance halved, doubled, or unchanged? Explain. 2. Parallelplate capacitor B is identical to parallelplate capacitor A except that it is scaled up in size by a factor of 2, which doubles the width, height, and plate separation of capacitor A. What is the capacitance ratio CB ICA? 3. The surface area of a plant's roots is a good measure of the health of the plant: A healthy plant has a large root surface area. An investigator can measure the root area indirectly by measuring the capacitance of the plant. One electrode is the soil, the other is the tissue inside the plant. The membrane that separates the two has a reasonably constant thickness. If an investigator measures the capacitance of one plant and then nds that a second plant has twice the capacitance, what does that imply about the root area of the second plant compared to the rst? 6. The touch screen on your phone has a grid of transparent electrodes etched onto the back of the glass plate. Each pair of electrodes is a capacitor, and the phone's circuitry measures all of the capacitances several times each second. The electric field of each capacitor- unlike that of an ideal parallel-plate capacitor-is not confined to the space between the electrodes. Instead, part of each capacitor's electric field extends above the glass. When your finger touches the screen, it changes the capacitance of the pair of electrodes directly beneath your finger. The change is detected by the circuitry, which then knows where your finger is. Does your finger increase or decrease the capacitance of that pair of electrodes? Explain. >
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