Chapter 2 – Capacitance
A conducting sphere of radius 10 cm is charged with 10 μC. Another uncharged sphere of radius 20 cm is allowed to touch it for some time. After that if the spheres are separated, then surface density of charges on the spheres will be in the ratio of
30
Nov
A conducting sphere of radius 10 cm is charged with 10 μC. Another uncharged sphere of radius 20 cm is allowed to touch it for some time. After that if the spheres are separated, then surface density of charges on the spheres will be in the ratio of A conducting sphere of radius 10 cm [...]
Two isolated charged metallic spheres of radii r1 and r2 having charges q1 and q2 respectively are connected to each other, then there is
30
Nov
Two isolated charged metallic spheres of radii r1 and r2 having charges q1 and q2 respectively are connected to each other, then there is then there is Two isolated charged metallic spheres of radii r1 and r2 having charges q1 and q2 respectively are connected to each other November 30, 2020 Category: Cengage NEET by [...]
A 2μF capacitor is charged as shown in the figure. The percentage of its stored energy dissipated after the switch S is turned to position 2 is
30
Nov
A 2μF capacitor is charged as shown in the figure. The percentage of its stored energy dissipated after the switch S is turned to position 2 is A 2μF capacitor is charged as shown in the figure. The percentage of its stored energy dissipated after the switch S is turned to position 2 is November [...]
A parallel plate capacitor of capacitance C is connected to a battery and is charged to a potential difference V. Another capacitor of capacitance 2C is connected to another battery and is charge to a potential difference 2V. The charging battery is now disconnected and the capacitors are connected in parallel to each other in such a way that the positive terminal of one is connected to the negative terminal of the other. The final energy of the configuration is
30
Nov
A parallel plate capacitor of capacitance C is connected to a battery and is charged to a potential difference V. Another capacitor of capacitance 2C is connected to another battery and is charge to a potential difference 2V. The charging battery is now disconnected and the capacitors are connected in parallel to each other in [...]
A condenser of capacity C1 is charged to a potential V. The electrostatic energy stored in it is U. It is connected to another uncharged condenser of capacity C2 in parallel. Find the energy dissipated in this process.
30
Nov
A condenser of capacity C1 is charged to a potential V. The electrostatic energy stored in it is U. It is connected to another uncharged condenser of capacity C2 in parallel. Find the energy dissipated in this process. Minimum number of capacitors of 4μF capacitance each required to obtain a capacitor of 10μF will be [...]
A metallic sphere of radius R having charge Q is connected to an uncharged sphere of radius 3R. The amount of charge flown through connecting wire is
30
Nov
A metallic sphere of radius R having charge Q is connected to an uncharged sphere of radius 3R. The amount of charge flown through connecting wire is A metallic sphere of radius R having charge Q is connected to an uncharged sphere of radius 3R. The amount of charge flown through connecting wire is November [...]
A battery of 20V is connected to a capacitor of capacitance 10μF. Now battery is removed and this capacitor is connected to a second uncharged capacitor. If the charge distributes equally on these two capacitors, the total energy stored in the two capacitors will be
30
Nov
A battery of 20V is connected to a capacitor of capacitance 10μF. Now battery is removed and this capacitor is connected to a second uncharged capacitor. If the charge distributes equally on these two capacitors, the total energy stored in the two capacitors will be Minimum number of capacitors of 4μF capacitance each required to [...]
Two metallic spheres of radii 1cm and 2cm are given charges 10^−2C and 5×10^−2C respectively. If they are connected by a conducting wire, the final charge on the smaller sphere is
30
Nov
Two metallic spheres of radii 1cm and 2cm are given charges 10^−2C and 5×10^−2C respectively. If they are connected by a conducting wire, the final charge on the smaller sphere is the final charge on the smaller sphere is Two metallic spheres of radii 1cm and 2cm are given charges 10^−2C and 5×10^−2C respectively. If [...]
Two identical capacitors have the same capacitance C. One of them is charged to potential V1 and the other to V2. The negative ends of the capacitors are connected together . When the positive ends are also connected, the decrease in energy of the combine system is
30
Nov
Two identical capacitors have the same capacitance C. One of them is charged to potential V1 and the other to V2. The negative ends of the capacitors are connected together . When the positive ends are also connected, the decrease in energy of the combine system is Minimum number of capacitors of 4μF capacitance each [...]
Three capacitors each of capacitance C and of breakdown voltage V are joined in series. The capacitance and breakdown voltage of the combination will be.
30
Nov
Three capacitors each of capacitance C and of breakdown voltage V are joined in series. The capacitance and breakdown voltage of the combination will be. Three capacitors each of capacitance C and of breakdown voltage V are joined in series. The capacitance and breakdown voltage of the combination will be. November 30, 2020 Category: Cengage [...]