CAPACITANCE
Electrostatic Potentials and Capacitance

268149 The equivalent capacitance\(C_{A B}\) of the circuit shown in the figure is

1 \(\frac{5}{4} C\)
2 \(\frac{4}{5} C\)
3 \(2 C\) C
4 \(C\)
Electrostatic Potentials and Capacitance

268075 The capacity of a parallel plate condenser consisting of two plates each\(10 \mathrm{~cm}\) square and are seperated by a distance of \(2 \mathrm{~mm}\) is (Take air as the medium between the plates)

1 \(8.85 \times 10^{-13} \mathrm{~F}\)
2 \(4.42 \times 10^{-12} \mathrm{~F}\)
3 \(44.25 \times 10^{-12} \mathrm{~F}\)
4 \(88.5 \times 10^{-13} \mathrm{~F}\)
Electrostatic Potentials and Capacitance

268076 Sixty four spherical drops each of radius\(2 \mathrm{~cm}\) and carrying 5C charge combine to form a bigger drop. Its capacity is

1 \(\frac{8}{9} \times 10^{-11} \mathrm{~F}\)
2 \(90 \times\)
3 \(1.1 \times 10^{-11} \mathrm{~F}\)
4 \(9 \times 10^{11} \mathrm{~F}\)
Electrostatic Potentials and Capacitance

268077 A highly conducting sheet ofaluminium foil of negligible thickness is placed between the plates of a parallel plate capacitor. The foil is parallel to the plates. If the capacitance before the insertion of foil was \(10 \mu \mathrm{F}\), its value after the insertion of foil will be

1 \(20 \mu \mathrm{F}\)
2 \(10 \mu \mathrm{F}\)
3 \(5 \mu \mathrm{F}\)
4 Zero
Electrostatic Potentials and Capacitance

268078 Two metal platesare separated by a distance d in a parallel plate condenser. A metal plate of thickness \(t\) and of the same area is inserted between the condenser plates. The value of capacitance increases by times

1 \(\frac{d-t}{d}\)
2 \(\left(1-\frac{t}{d}\right)\)
3 \(\left(t-\frac{t}{d}\right)\)
4 \(\frac{1}{\left(1-\frac{t}{d}\right)}\)
Electrostatic Potentials and Capacitance

268149 The equivalent capacitance\(C_{A B}\) of the circuit shown in the figure is

1 \(\frac{5}{4} C\)
2 \(\frac{4}{5} C\)
3 \(2 C\) C
4 \(C\)
Electrostatic Potentials and Capacitance

268075 The capacity of a parallel plate condenser consisting of two plates each\(10 \mathrm{~cm}\) square and are seperated by a distance of \(2 \mathrm{~mm}\) is (Take air as the medium between the plates)

1 \(8.85 \times 10^{-13} \mathrm{~F}\)
2 \(4.42 \times 10^{-12} \mathrm{~F}\)
3 \(44.25 \times 10^{-12} \mathrm{~F}\)
4 \(88.5 \times 10^{-13} \mathrm{~F}\)
Electrostatic Potentials and Capacitance

268076 Sixty four spherical drops each of radius\(2 \mathrm{~cm}\) and carrying 5C charge combine to form a bigger drop. Its capacity is

1 \(\frac{8}{9} \times 10^{-11} \mathrm{~F}\)
2 \(90 \times\)
3 \(1.1 \times 10^{-11} \mathrm{~F}\)
4 \(9 \times 10^{11} \mathrm{~F}\)
Electrostatic Potentials and Capacitance

268077 A highly conducting sheet ofaluminium foil of negligible thickness is placed between the plates of a parallel plate capacitor. The foil is parallel to the plates. If the capacitance before the insertion of foil was \(10 \mu \mathrm{F}\), its value after the insertion of foil will be

1 \(20 \mu \mathrm{F}\)
2 \(10 \mu \mathrm{F}\)
3 \(5 \mu \mathrm{F}\)
4 Zero
Electrostatic Potentials and Capacitance

268078 Two metal platesare separated by a distance d in a parallel plate condenser. A metal plate of thickness \(t\) and of the same area is inserted between the condenser plates. The value of capacitance increases by times

1 \(\frac{d-t}{d}\)
2 \(\left(1-\frac{t}{d}\right)\)
3 \(\left(t-\frac{t}{d}\right)\)
4 \(\frac{1}{\left(1-\frac{t}{d}\right)}\)
Electrostatic Potentials and Capacitance

268149 The equivalent capacitance\(C_{A B}\) of the circuit shown in the figure is

1 \(\frac{5}{4} C\)
2 \(\frac{4}{5} C\)
3 \(2 C\) C
4 \(C\)
Electrostatic Potentials and Capacitance

268075 The capacity of a parallel plate condenser consisting of two plates each\(10 \mathrm{~cm}\) square and are seperated by a distance of \(2 \mathrm{~mm}\) is (Take air as the medium between the plates)

1 \(8.85 \times 10^{-13} \mathrm{~F}\)
2 \(4.42 \times 10^{-12} \mathrm{~F}\)
3 \(44.25 \times 10^{-12} \mathrm{~F}\)
4 \(88.5 \times 10^{-13} \mathrm{~F}\)
Electrostatic Potentials and Capacitance

268076 Sixty four spherical drops each of radius\(2 \mathrm{~cm}\) and carrying 5C charge combine to form a bigger drop. Its capacity is

1 \(\frac{8}{9} \times 10^{-11} \mathrm{~F}\)
2 \(90 \times\)
3 \(1.1 \times 10^{-11} \mathrm{~F}\)
4 \(9 \times 10^{11} \mathrm{~F}\)
Electrostatic Potentials and Capacitance

268077 A highly conducting sheet ofaluminium foil of negligible thickness is placed between the plates of a parallel plate capacitor. The foil is parallel to the plates. If the capacitance before the insertion of foil was \(10 \mu \mathrm{F}\), its value after the insertion of foil will be

1 \(20 \mu \mathrm{F}\)
2 \(10 \mu \mathrm{F}\)
3 \(5 \mu \mathrm{F}\)
4 Zero
Electrostatic Potentials and Capacitance

268078 Two metal platesare separated by a distance d in a parallel plate condenser. A metal plate of thickness \(t\) and of the same area is inserted between the condenser plates. The value of capacitance increases by times

1 \(\frac{d-t}{d}\)
2 \(\left(1-\frac{t}{d}\right)\)
3 \(\left(t-\frac{t}{d}\right)\)
4 \(\frac{1}{\left(1-\frac{t}{d}\right)}\)
Electrostatic Potentials and Capacitance

268149 The equivalent capacitance\(C_{A B}\) of the circuit shown in the figure is

1 \(\frac{5}{4} C\)
2 \(\frac{4}{5} C\)
3 \(2 C\) C
4 \(C\)
Electrostatic Potentials and Capacitance

268075 The capacity of a parallel plate condenser consisting of two plates each\(10 \mathrm{~cm}\) square and are seperated by a distance of \(2 \mathrm{~mm}\) is (Take air as the medium between the plates)

1 \(8.85 \times 10^{-13} \mathrm{~F}\)
2 \(4.42 \times 10^{-12} \mathrm{~F}\)
3 \(44.25 \times 10^{-12} \mathrm{~F}\)
4 \(88.5 \times 10^{-13} \mathrm{~F}\)
Electrostatic Potentials and Capacitance

268076 Sixty four spherical drops each of radius\(2 \mathrm{~cm}\) and carrying 5C charge combine to form a bigger drop. Its capacity is

1 \(\frac{8}{9} \times 10^{-11} \mathrm{~F}\)
2 \(90 \times\)
3 \(1.1 \times 10^{-11} \mathrm{~F}\)
4 \(9 \times 10^{11} \mathrm{~F}\)
Electrostatic Potentials and Capacitance

268077 A highly conducting sheet ofaluminium foil of negligible thickness is placed between the plates of a parallel plate capacitor. The foil is parallel to the plates. If the capacitance before the insertion of foil was \(10 \mu \mathrm{F}\), its value after the insertion of foil will be

1 \(20 \mu \mathrm{F}\)
2 \(10 \mu \mathrm{F}\)
3 \(5 \mu \mathrm{F}\)
4 Zero
Electrostatic Potentials and Capacitance

268078 Two metal platesare separated by a distance d in a parallel plate condenser. A metal plate of thickness \(t\) and of the same area is inserted between the condenser plates. The value of capacitance increases by times

1 \(\frac{d-t}{d}\)
2 \(\left(1-\frac{t}{d}\right)\)
3 \(\left(t-\frac{t}{d}\right)\)
4 \(\frac{1}{\left(1-\frac{t}{d}\right)}\)
Electrostatic Potentials and Capacitance

268149 The equivalent capacitance\(C_{A B}\) of the circuit shown in the figure is

1 \(\frac{5}{4} C\)
2 \(\frac{4}{5} C\)
3 \(2 C\) C
4 \(C\)
Electrostatic Potentials and Capacitance

268075 The capacity of a parallel plate condenser consisting of two plates each\(10 \mathrm{~cm}\) square and are seperated by a distance of \(2 \mathrm{~mm}\) is (Take air as the medium between the plates)

1 \(8.85 \times 10^{-13} \mathrm{~F}\)
2 \(4.42 \times 10^{-12} \mathrm{~F}\)
3 \(44.25 \times 10^{-12} \mathrm{~F}\)
4 \(88.5 \times 10^{-13} \mathrm{~F}\)
Electrostatic Potentials and Capacitance

268076 Sixty four spherical drops each of radius\(2 \mathrm{~cm}\) and carrying 5C charge combine to form a bigger drop. Its capacity is

1 \(\frac{8}{9} \times 10^{-11} \mathrm{~F}\)
2 \(90 \times\)
3 \(1.1 \times 10^{-11} \mathrm{~F}\)
4 \(9 \times 10^{11} \mathrm{~F}\)
Electrostatic Potentials and Capacitance

268077 A highly conducting sheet ofaluminium foil of negligible thickness is placed between the plates of a parallel plate capacitor. The foil is parallel to the plates. If the capacitance before the insertion of foil was \(10 \mu \mathrm{F}\), its value after the insertion of foil will be

1 \(20 \mu \mathrm{F}\)
2 \(10 \mu \mathrm{F}\)
3 \(5 \mu \mathrm{F}\)
4 Zero
Electrostatic Potentials and Capacitance

268078 Two metal platesare separated by a distance d in a parallel plate condenser. A metal plate of thickness \(t\) and of the same area is inserted between the condenser plates. The value of capacitance increases by times

1 \(\frac{d-t}{d}\)
2 \(\left(1-\frac{t}{d}\right)\)
3 \(\left(t-\frac{t}{d}\right)\)
4 \(\frac{1}{\left(1-\frac{t}{d}\right)}\)