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1. The plate area of a parallel-plate capacitor of capacitance C is doubled and the distance between the plates is halved so that the volume of the dielectric remains the same. The new capacitance of the capacitor is a. ½ C b. 20 c. 4 C d. 4C

1. The plate area of a parallel-plate capacitor of capacitance C is doubled and the distance between the plates is halved so that the volume of the dielectric remains the same. The new capacitance of the capacitor is a. ½ C b. 20 c. 4 C d. 4C

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Please answer 1 to 3. Brief explanation is okay

1. The plate area of a parallel-plate capacitor of capacitance C is doubled and the distance between the plates is halved so that the volume of the dielectric remains the same. The new capacitance of the capacitor is a. ½ C b. 20 с. С d. 4C 2. The magnitude of the electric field in the space between two oppositely charged metal plates is a. greatest near the positive plate b. zero c. uniform all throughout the region d. greatest near the negative plate 3. If the potential difference between the two points A and B is positive, it means that the a. work is done on the system to move the charges from point A to point B b. work is done by the system to move the charges from point A to point B. c. work is done on the system to move the charges from point B to point A. d. work is done by the system to move the charges from point B to point A.
Transcribed Image Text:1. The plate area of a parallel-plate capacitor of capacitance C is doubled and the distance between the plates is halved so that the volume of the dielectric remains the same. The new capacitance of the capacitor is a. ½ C b. 20 с. С d. 4C 2. The magnitude of the electric field in the space between two oppositely charged metal plates is a. greatest near the positive plate b. zero c. uniform all throughout the region d. greatest near the negative plate 3. If the potential difference between the two points A and B is positive, it means that the a. work is done on the system to move the charges from point A to point B b. work is done by the system to move the charges from point A to point B. c. work is done on the system to move the charges from point B to point A. d. work is done by the system to move the charges from point B to point A.
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