Consider two oppositely charged, isolated parallel platesseparated by distance D
ID: 1669653 • Letter: C
Question
Consider two oppositely charged, isolated parallel platesseparated by distance D, with capacitance C,charge Q, and stored energy U. For each statementbelow, select "True" or"False". 1. When D is doubled, U isunchanged.2. Increasing D, leaves the E fieldunchanged.
3. Because of energy conservation, inserting a dielectricleaves U unchanged.
4. When D is doubled, C ishalved.
5. When D is halved, Q stays thesame.
6. Because of charge conservation, inserting a dielectricleaves C unchanged.
7. Inserting a dielectric does not affect Q Consider two oppositely charged, isolated parallel platesseparated by distance D, with capacitance C,charge Q, and stored energy U. For each statementbelow, select "True" or"False". 1. When D is doubled, U isunchanged.
2. Increasing D, leaves the E fieldunchanged.
3. Because of energy conservation, inserting a dielectricleaves U unchanged.
4. When D is doubled, C ishalved.
5. When D is halved, Q stays thesame.
6. Because of charge conservation, inserting a dielectricleaves C unchanged.
7. Inserting a dielectric does not affect Q
Explanation / Answer
1. When D is doubled, U isunchanged. False (because U 1 / D)2. Increasing D, leaves the E fieldunchanged. True (because E = / ko )
3. Because of energy conservation, inserting a dielectricleaves U unchanged. True
4. When D is doubled, C is halved. True ( C 1 / D)
5. When D is halved, Q stays thesame. True ( because Q isindependent of D)
6. Because of charge conservation, inserting a dielectricleaves C unchanged. False (C k)
7. Inserting a dielectric does not affect Q False.