ENERGY STORED IN A CONDENSER AND TYPES OF CAPACITORS
Electrostatic Potentials and Capacitance

268025 The magnitude of electric field\(E\) in the annular region of a charged cylindrical capacitor

1 issamethroughout
2 is higher neartheouter cylinder than near the inner cylinder
3 varies as\(1 / r\) where \(r\) is the distance from the axis
4 varies as\(r\) where \(r\) is the distance from the axis
Electrostatic Potentials and Capacitance

268055 Thecircuit involves two ideal cells connected to a \(1 \mu \mathbf{F}\) capacitor via key \(\mathbf{K}\). Initially the key \(K\) is in position 1 and the capacitor is charged fully by \(2 \mathrm{~V}\) cell. The key is pushed to position 2. Column I gives physical quantities involving the circuit after the key is pushed from position 1. C olumn.II gives corresponding results. M atch thecolumn-I with Column-II

|Column-I|Column-II|
|-----|-----|
|(a) The net charge crossing the 4 volt cell in \(\mu C\) is|(p) 2|
|(b) Themagnitudeof work done by 4 volt cell in \(\mu\) is|(q) 6|
|(c) The gain in potential energy of capacitor in \(\mu\) / is|(r) 8|
|(d) The net heat produced in circuit in \(\mu \mu\) is|(s) 16|

1 \(a r, b-p, c-s, d-q\)
2 \(a p, b-r, c-q, d-p\)
3 \(a r, b-p, c-q, d-q\)
4 \(a r, b-q, c-s, d-q\)
Electrostatic Potentials and Capacitance

268020 A parallel plate condenseris charged by connecting it to a battery. Without disconnecting the battery, the space between the plates is completely filled with a medium of dielectric constant \(k\). Then

1 potential becomes\(1 / k\) times
2 charge becomes\(k\) times
3 energy becomes\(1 / k\) times
4 electric intensity becomes\(k\) times.
Electrostatic Potentials and Capacitance

268017 The condenser used in the tuning circuit of radio receiver is

1 paper condenser
2 electrolytic condenser
3 leydenjar
4 gang condenser
Electrostatic Potentials and Capacitance

268018 Space between the plates of a parallel plate capacitoris filled with a dielectric slab. The capacitor is charged and then the supply is disconnected to it. If the slab is now taken out then

1 work is notdoneto takeout theslab
2 energy stored in the capacitor reduces
3 potential difference across the capacitor
is decreased
4 potential difference across the capacitor
is increased
Electrostatic Potentials and Capacitance

268025 The magnitude of electric field\(E\) in the annular region of a charged cylindrical capacitor

1 issamethroughout
2 is higher neartheouter cylinder than near the inner cylinder
3 varies as\(1 / r\) where \(r\) is the distance from the axis
4 varies as\(r\) where \(r\) is the distance from the axis
Electrostatic Potentials and Capacitance

268055 Thecircuit involves two ideal cells connected to a \(1 \mu \mathbf{F}\) capacitor via key \(\mathbf{K}\). Initially the key \(K\) is in position 1 and the capacitor is charged fully by \(2 \mathrm{~V}\) cell. The key is pushed to position 2. Column I gives physical quantities involving the circuit after the key is pushed from position 1. C olumn.II gives corresponding results. M atch thecolumn-I with Column-II

|Column-I|Column-II|
|-----|-----|
|(a) The net charge crossing the 4 volt cell in \(\mu C\) is|(p) 2|
|(b) Themagnitudeof work done by 4 volt cell in \(\mu\) is|(q) 6|
|(c) The gain in potential energy of capacitor in \(\mu\) / is|(r) 8|
|(d) The net heat produced in circuit in \(\mu \mu\) is|(s) 16|

1 \(a r, b-p, c-s, d-q\)
2 \(a p, b-r, c-q, d-p\)
3 \(a r, b-p, c-q, d-q\)
4 \(a r, b-q, c-s, d-q\)
Electrostatic Potentials and Capacitance

268020 A parallel plate condenseris charged by connecting it to a battery. Without disconnecting the battery, the space between the plates is completely filled with a medium of dielectric constant \(k\). Then

1 potential becomes\(1 / k\) times
2 charge becomes\(k\) times
3 energy becomes\(1 / k\) times
4 electric intensity becomes\(k\) times.
Electrostatic Potentials and Capacitance

268017 The condenser used in the tuning circuit of radio receiver is

1 paper condenser
2 electrolytic condenser
3 leydenjar
4 gang condenser
Electrostatic Potentials and Capacitance

268018 Space between the plates of a parallel plate capacitoris filled with a dielectric slab. The capacitor is charged and then the supply is disconnected to it. If the slab is now taken out then

1 work is notdoneto takeout theslab
2 energy stored in the capacitor reduces
3 potential difference across the capacitor
is decreased
4 potential difference across the capacitor
is increased
Electrostatic Potentials and Capacitance

268025 The magnitude of electric field\(E\) in the annular region of a charged cylindrical capacitor

1 issamethroughout
2 is higher neartheouter cylinder than near the inner cylinder
3 varies as\(1 / r\) where \(r\) is the distance from the axis
4 varies as\(r\) where \(r\) is the distance from the axis
Electrostatic Potentials and Capacitance

268055 Thecircuit involves two ideal cells connected to a \(1 \mu \mathbf{F}\) capacitor via key \(\mathbf{K}\). Initially the key \(K\) is in position 1 and the capacitor is charged fully by \(2 \mathrm{~V}\) cell. The key is pushed to position 2. Column I gives physical quantities involving the circuit after the key is pushed from position 1. C olumn.II gives corresponding results. M atch thecolumn-I with Column-II

|Column-I|Column-II|
|-----|-----|
|(a) The net charge crossing the 4 volt cell in \(\mu C\) is|(p) 2|
|(b) Themagnitudeof work done by 4 volt cell in \(\mu\) is|(q) 6|
|(c) The gain in potential energy of capacitor in \(\mu\) / is|(r) 8|
|(d) The net heat produced in circuit in \(\mu \mu\) is|(s) 16|

1 \(a r, b-p, c-s, d-q\)
2 \(a p, b-r, c-q, d-p\)
3 \(a r, b-p, c-q, d-q\)
4 \(a r, b-q, c-s, d-q\)
Electrostatic Potentials and Capacitance

268020 A parallel plate condenseris charged by connecting it to a battery. Without disconnecting the battery, the space between the plates is completely filled with a medium of dielectric constant \(k\). Then

1 potential becomes\(1 / k\) times
2 charge becomes\(k\) times
3 energy becomes\(1 / k\) times
4 electric intensity becomes\(k\) times.
Electrostatic Potentials and Capacitance

268017 The condenser used in the tuning circuit of radio receiver is

1 paper condenser
2 electrolytic condenser
3 leydenjar
4 gang condenser
Electrostatic Potentials and Capacitance

268018 Space between the plates of a parallel plate capacitoris filled with a dielectric slab. The capacitor is charged and then the supply is disconnected to it. If the slab is now taken out then

1 work is notdoneto takeout theslab
2 energy stored in the capacitor reduces
3 potential difference across the capacitor
is decreased
4 potential difference across the capacitor
is increased
Electrostatic Potentials and Capacitance

268025 The magnitude of electric field\(E\) in the annular region of a charged cylindrical capacitor

1 issamethroughout
2 is higher neartheouter cylinder than near the inner cylinder
3 varies as\(1 / r\) where \(r\) is the distance from the axis
4 varies as\(r\) where \(r\) is the distance from the axis
Electrostatic Potentials and Capacitance

268055 Thecircuit involves two ideal cells connected to a \(1 \mu \mathbf{F}\) capacitor via key \(\mathbf{K}\). Initially the key \(K\) is in position 1 and the capacitor is charged fully by \(2 \mathrm{~V}\) cell. The key is pushed to position 2. Column I gives physical quantities involving the circuit after the key is pushed from position 1. C olumn.II gives corresponding results. M atch thecolumn-I with Column-II

|Column-I|Column-II|
|-----|-----|
|(a) The net charge crossing the 4 volt cell in \(\mu C\) is|(p) 2|
|(b) Themagnitudeof work done by 4 volt cell in \(\mu\) is|(q) 6|
|(c) The gain in potential energy of capacitor in \(\mu\) / is|(r) 8|
|(d) The net heat produced in circuit in \(\mu \mu\) is|(s) 16|

1 \(a r, b-p, c-s, d-q\)
2 \(a p, b-r, c-q, d-p\)
3 \(a r, b-p, c-q, d-q\)
4 \(a r, b-q, c-s, d-q\)
Electrostatic Potentials and Capacitance

268020 A parallel plate condenseris charged by connecting it to a battery. Without disconnecting the battery, the space between the plates is completely filled with a medium of dielectric constant \(k\). Then

1 potential becomes\(1 / k\) times
2 charge becomes\(k\) times
3 energy becomes\(1 / k\) times
4 electric intensity becomes\(k\) times.
Electrostatic Potentials and Capacitance

268017 The condenser used in the tuning circuit of radio receiver is

1 paper condenser
2 electrolytic condenser
3 leydenjar
4 gang condenser
Electrostatic Potentials and Capacitance

268018 Space between the plates of a parallel plate capacitoris filled with a dielectric slab. The capacitor is charged and then the supply is disconnected to it. If the slab is now taken out then

1 work is notdoneto takeout theslab
2 energy stored in the capacitor reduces
3 potential difference across the capacitor
is decreased
4 potential difference across the capacitor
is increased
Electrostatic Potentials and Capacitance

268025 The magnitude of electric field\(E\) in the annular region of a charged cylindrical capacitor

1 issamethroughout
2 is higher neartheouter cylinder than near the inner cylinder
3 varies as\(1 / r\) where \(r\) is the distance from the axis
4 varies as\(r\) where \(r\) is the distance from the axis
Electrostatic Potentials and Capacitance

268055 Thecircuit involves two ideal cells connected to a \(1 \mu \mathbf{F}\) capacitor via key \(\mathbf{K}\). Initially the key \(K\) is in position 1 and the capacitor is charged fully by \(2 \mathrm{~V}\) cell. The key is pushed to position 2. Column I gives physical quantities involving the circuit after the key is pushed from position 1. C olumn.II gives corresponding results. M atch thecolumn-I with Column-II

|Column-I|Column-II|
|-----|-----|
|(a) The net charge crossing the 4 volt cell in \(\mu C\) is|(p) 2|
|(b) Themagnitudeof work done by 4 volt cell in \(\mu\) is|(q) 6|
|(c) The gain in potential energy of capacitor in \(\mu\) / is|(r) 8|
|(d) The net heat produced in circuit in \(\mu \mu\) is|(s) 16|

1 \(a r, b-p, c-s, d-q\)
2 \(a p, b-r, c-q, d-p\)
3 \(a r, b-p, c-q, d-q\)
4 \(a r, b-q, c-s, d-q\)
Electrostatic Potentials and Capacitance

268020 A parallel plate condenseris charged by connecting it to a battery. Without disconnecting the battery, the space between the plates is completely filled with a medium of dielectric constant \(k\). Then

1 potential becomes\(1 / k\) times
2 charge becomes\(k\) times
3 energy becomes\(1 / k\) times
4 electric intensity becomes\(k\) times.
Electrostatic Potentials and Capacitance

268017 The condenser used in the tuning circuit of radio receiver is

1 paper condenser
2 electrolytic condenser
3 leydenjar
4 gang condenser
Electrostatic Potentials and Capacitance

268018 Space between the plates of a parallel plate capacitoris filled with a dielectric slab. The capacitor is charged and then the supply is disconnected to it. If the slab is now taken out then

1 work is notdoneto takeout theslab
2 energy stored in the capacitor reduces
3 potential difference across the capacitor
is decreased
4 potential difference across the capacitor
is increased