Capacitors with Dielectric
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359220 A parallel plate air capacitor has a capacitance \(18\mu {\rm{F}}\). If the distance between the plates is tripled and a dielectric medium is introduced, the capacitance becomes \(54\,\mu {\rm{F}}\). The dielectric constant of the medium is

1 \(4\)
2 \(9\)
3 \(12\)
4 \(2\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359221 A parallel plate capacitor has capacitance \(C\). If it is equally filled with parallel layers of materials of dielectric constant \(K_{1}\) and \(K_{2}\) its capacity becomes \(C_{1}\). The ratio of \(C_{1}\) and \(C\) is

1 \(K_{1}+K_{2}\)
2 \(\dfrac{K_{1} K_{2}}{K_{1}+K_{2}}\)
3 \(\dfrac{K_{1}+K_{2}}{K_{1} K_{2}}\)
4 \(\dfrac{2 K_{1} K_{2}}{K_{1}+K_{2}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359222 An air capacitor of capacity \(C = 20\mu F\) is connected to a constant voltage battery of 6 \(V\). Now the space between the plates is filled with a liquid of dielectric constant 2. The charge that flows now from battery to the capacitor is

1 \(120\,\mu C\)
2 \(240\,\mu C\)
3 \(180\,\mu C\)
4 \(80\,\mu C\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359223 A voltmeter reads 4 \(V\) when connected parallel plate capacitor with air as a dielectric. When a dielectric slab is introduced between plates for the same configuration, voltmeter reads 2 \(V\). What is the dielectric constant of the material?

1 \(8\)
2 \(0.5\)
3 \(10\)
4 \(2\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359220 A parallel plate air capacitor has a capacitance \(18\mu {\rm{F}}\). If the distance between the plates is tripled and a dielectric medium is introduced, the capacitance becomes \(54\,\mu {\rm{F}}\). The dielectric constant of the medium is

1 \(4\)
2 \(9\)
3 \(12\)
4 \(2\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359221 A parallel plate capacitor has capacitance \(C\). If it is equally filled with parallel layers of materials of dielectric constant \(K_{1}\) and \(K_{2}\) its capacity becomes \(C_{1}\). The ratio of \(C_{1}\) and \(C\) is

1 \(K_{1}+K_{2}\)
2 \(\dfrac{K_{1} K_{2}}{K_{1}+K_{2}}\)
3 \(\dfrac{K_{1}+K_{2}}{K_{1} K_{2}}\)
4 \(\dfrac{2 K_{1} K_{2}}{K_{1}+K_{2}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359222 An air capacitor of capacity \(C = 20\mu F\) is connected to a constant voltage battery of 6 \(V\). Now the space between the plates is filled with a liquid of dielectric constant 2. The charge that flows now from battery to the capacitor is

1 \(120\,\mu C\)
2 \(240\,\mu C\)
3 \(180\,\mu C\)
4 \(80\,\mu C\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359223 A voltmeter reads 4 \(V\) when connected parallel plate capacitor with air as a dielectric. When a dielectric slab is introduced between plates for the same configuration, voltmeter reads 2 \(V\). What is the dielectric constant of the material?

1 \(8\)
2 \(0.5\)
3 \(10\)
4 \(2\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359220 A parallel plate air capacitor has a capacitance \(18\mu {\rm{F}}\). If the distance between the plates is tripled and a dielectric medium is introduced, the capacitance becomes \(54\,\mu {\rm{F}}\). The dielectric constant of the medium is

1 \(4\)
2 \(9\)
3 \(12\)
4 \(2\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359221 A parallel plate capacitor has capacitance \(C\). If it is equally filled with parallel layers of materials of dielectric constant \(K_{1}\) and \(K_{2}\) its capacity becomes \(C_{1}\). The ratio of \(C_{1}\) and \(C\) is

1 \(K_{1}+K_{2}\)
2 \(\dfrac{K_{1} K_{2}}{K_{1}+K_{2}}\)
3 \(\dfrac{K_{1}+K_{2}}{K_{1} K_{2}}\)
4 \(\dfrac{2 K_{1} K_{2}}{K_{1}+K_{2}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359222 An air capacitor of capacity \(C = 20\mu F\) is connected to a constant voltage battery of 6 \(V\). Now the space between the plates is filled with a liquid of dielectric constant 2. The charge that flows now from battery to the capacitor is

1 \(120\,\mu C\)
2 \(240\,\mu C\)
3 \(180\,\mu C\)
4 \(80\,\mu C\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359223 A voltmeter reads 4 \(V\) when connected parallel plate capacitor with air as a dielectric. When a dielectric slab is introduced between plates for the same configuration, voltmeter reads 2 \(V\). What is the dielectric constant of the material?

1 \(8\)
2 \(0.5\)
3 \(10\)
4 \(2\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359220 A parallel plate air capacitor has a capacitance \(18\mu {\rm{F}}\). If the distance between the plates is tripled and a dielectric medium is introduced, the capacitance becomes \(54\,\mu {\rm{F}}\). The dielectric constant of the medium is

1 \(4\)
2 \(9\)
3 \(12\)
4 \(2\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359221 A parallel plate capacitor has capacitance \(C\). If it is equally filled with parallel layers of materials of dielectric constant \(K_{1}\) and \(K_{2}\) its capacity becomes \(C_{1}\). The ratio of \(C_{1}\) and \(C\) is

1 \(K_{1}+K_{2}\)
2 \(\dfrac{K_{1} K_{2}}{K_{1}+K_{2}}\)
3 \(\dfrac{K_{1}+K_{2}}{K_{1} K_{2}}\)
4 \(\dfrac{2 K_{1} K_{2}}{K_{1}+K_{2}}\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359222 An air capacitor of capacity \(C = 20\mu F\) is connected to a constant voltage battery of 6 \(V\). Now the space between the plates is filled with a liquid of dielectric constant 2. The charge that flows now from battery to the capacitor is

1 \(120\,\mu C\)
2 \(240\,\mu C\)
3 \(180\,\mu C\)
4 \(80\,\mu C\)
PHXII02:ELECTROSTATIC POTENTIAL AND CAPACITANCE

359223 A voltmeter reads 4 \(V\) when connected parallel plate capacitor with air as a dielectric. When a dielectric slab is introduced between plates for the same configuration, voltmeter reads 2 \(V\). What is the dielectric constant of the material?

1 \(8\)
2 \(0.5\)
3 \(10\)
4 \(2\)
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