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Q24.1. The two conductors a and b are insulated from each other, forming a capacitor. You increase the charge on a to +2 Q and increase the charge on b to –2 Q , while keeping the conductors in the same positions. What effect does this have on the capacitance C ?.
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Q24.1 The two conductors a and b are insulated from each other, forming a capacitor. You increase the charge on a to +2Q and increase the charge on b to –2Q, while keeping the conductors in the same positions. What effect does this have on the capacitance C? 1. C is multiplied by a factor of 4 2. C is multiplied by a factor of 2 3. C is unchanged 4. C is multiplied by a factor of 1/2 5. C is multiplied by a factor of 1/4
A24.1 The two conductors a and b are insulated from each other, forming a capacitor. You increase the charge on a to +2Q and increase the charge on b to –2Q, while keeping the conductors in the same positions. What effect does this have on the capacitance C? 1. C is multiplied by a factor of 4 2. C is multiplied by a factor of 2 3. C is unchanged 4. C is multiplied by a factor of 1/2 5. C is multiplied by a factor of 1/4
Q24.2 You reposition the two plates of a capacitor so that the capacitance doubles. If the charges +Q and –Q on the two plates are kept constant in this process, what happens to the potential difference Vab between the two plates? 1. Vab is multiplied by a factor of 4 2. Vab is multiplied by a factor of 2 3. Vab is unchanged 4. Vab is multiplied by a factor of 1/2 5. Vab is multiplied by a factor of 1/4
A24.2 You reposition the two plates of a capacitor so that the capacitance doubles. If the charges +Q and –Q on the two plates are kept constant in this process, what happens to the potential difference Vab between the two plates? 1. Vab is multiplied by a factor of 4 2. Vab is multiplied by a factor of 2 3. Vab is unchanged 4. Vab is multiplied by a factor of 1/2 5. Vab is multiplied by a factor of 1/4
Q24.3 Two capacitors are connected together as shown. What is the equivalent capacitance of the two capacitors as a unit? 1. Ceq = 18 mF 2. Ceq = 9 mF 3. Ceq = 6 mF 4. Ceq = 4 mF 5. Ceq = 2 mF
A24.3 Two capacitors are connected together as shown. What is the equivalent capacitance of the two capacitors as a unit? 1. Ceq = 18 mF 2. Ceq = 9 mF 3. Ceq = 6 mF 4. Ceq = 4 mF 5. Ceq = 2 mF
Q24.4 Two capacitors are connected together as shown. If the charge on the 12–mF capacitor is 24 microcoulombs (24 mC), what is the charge on the 6–mF capacitor? 1. 48 mC 2. 36 mC 3. 24 mC 4. 12 mC 5. 6 mC
A24.4 Two capacitors are connected together as shown. If the charge on the 12–mF capacitor is 24 microcoulombs (24 mC), what is the charge on the 6–mF capacitor? 1. 48 mC 2. 36 mC 3. 24 mC 4. 12 mC 5. 6 mC
Q24.5 You reposition the two plates of a capacitor so that the capacitance doubles. If the charges +Q and –Q on the two plates are kept constant in this process, what happens to the energy stored in the capacitor? 1. the stored energy is multiplied by a factor of 4 2. the stored energy is multiplied by a factor of 2 3. the stored energy is unchanged 4. the stored energy is multiplied by a factor of 1/2 5. the stored energy is multiplied by a factor of 1/4
A24.5 You reposition the two plates of a capacitor so that the capacitance doubles. If the charges +Q and –Q on the two plates are kept constant in this process, what happens to the energy stored in the capacitor? 1. the stored energy is multiplied by a factor of 4 2. the stored energy is multiplied by a factor of 2 3. the stored energy is unchanged 4. the stored energy is multiplied by a factor of 1/2 5. the stored energy is multiplied by a factor of 1/4
Q24.6 You slide a slab of dielectric between the plates of a capacitor. As you do this, the charges on the plates remain constant. What effect does this have on the energy stored in the capacitor? 1. the stored energy increases 2. the stored energy is unchanged 3. the stored energy decreases 4. not enough information given to decide
A24.6 You slide a slab of dielectric between the plates of a capacitor. As you do this, the charges on the plates remain constant. What effect does this have on the energy stored in the capacitor? 1. the stored energy increases 2. the stored energy is unchanged 3. the stored energy decreases 4. not enough information given to decide