ISC Physics Class 11 Question Paper

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ISC Physics Class 11 Question Paper. We covered all the ISC Physics Class 11 Question Paper in this post for free so that you can practice well for the exam.

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ISC Physics Class 11 MCQs for Students

A capacitor C₁ = 4 μF is connected in series with another capacitor C₂ = 1 µF. The combination is connected across d.c. source of 200 V. The ratio of potential across C₂ to C₁ is :

A parallel-plate capacitor has a capacitance of 50 μF in air and 110 μF when immersed in oil. The dielectric constant of oil is :

An 8μF capacitor has charged by the battery to 200 V. Then it is disconnected from the battery and two plates are connected by a wire. How much heat will be produced?

Two capacitors of 4 μF and 2 μF are charged to a potential at 500 V but with opposite polarity. The switches are then closed. Then, the ratio of the final energy to the initial energy of the system is

Due to a charged conductor, the energy density of the medium surrounding the conductor in free space is 1 J. When this conductor is placed in a medium of dielectric constant 2, the energy density will be :

The electric field intensity at a point near and outside the surface of a charged conductor of any shape is ‘E₁’. The electric field intensity due to the uniformly charged infinite thin plane sheet is ‘E₂’ The relation between ‘E₁’ and ‘E₂’ is :

A capacitor of 20 μF charged up to 500 V is connected in parallel with another capacitor of 10 μF which is charged up to 200 V. The common potential is :

Putting a dielectric substance between two plates of a condenser, the capacitance, potential and potential energy respectively :

Identical condensers are joined in parallel and are charged to potential V. Now, they are separated and joined in series. Then the total energy and potential difference of the combination will be :

A sheet of aluminum is inserted in the air gap of a parallel-plate capacitor without touching any of the two plates of a capacitor. The capacitance of the capacitor is :

Eight drops of mercury of equal radii and possessing equal charges combine to form a big drop. The capacitance of the bigger drop as compared to each smaller drop is :

The difference in the effective capacity of two similar capacitors when joined in series and then in parallel is 6μF. The capacity of each capacitor is :

There are 27 drops of a conducting fluid. Each has a radius r and they are charged to a potential Vo. These are combined to form a bigger drop. Its potential will be :

ISC Physics Class 11 MCQs for Students

A capacitor C₁ = 4 μF is connected in series with another capacitor C₂ = 1 µF. The combination is connected across d.c. source of 200 V. The ratio of potential across C₂ to C₁ is :

(A) 2 : 1

(B) 4 : 1

(D) 16 : 1

Option b – 4 : 1

A parallel-plate capacitor has a capacitance of 50 μF in air and 110 μF when immersed in oil. The dielectric constant of oil is :

(A) 0.45

(B) 0.55

(D) 2.2

Option d – 2.2

An 8μF capacitor has charged by the battery to 200 V. Then it is disconnected from the battery and two plates are connected by a wire. How much heat will be produced?

(A) 16 J

(B) 1.6 J

(D) 0.16 J

Option d – 0.16 J

Two capacitors of 4 μF and 2 μF are charged to a potential at 500 V but with opposite polarity. The switches are then closed. Then, the ratio of the final energy to the initial energy of the system is

(A) 1 : 9

(B) 4 : 9

(D) 2 : 1

Option c – 1 : 1

Due to a charged conductor, the energy density of the medium surrounding the conductor in free space is 1 J. When this conductor is placed in a medium of dielectric constant 2, the energy density will be :

(A) 0.5 J

(B) 1 J

(D) 4 J

Option c – 2 J

The electric field intensity at a point near and outside the surface of a charged conductor of any shape is ‘E₁’. The electric field intensity due to the uniformly charged infinite thin plane sheet is ‘E₂’ The relation between ‘E₁’ and ‘E₂’ is :

(A) 2E₁ = E₂

(B) E₁ = E₂

(D) E₁ = 4E₂

Option c – E₁ = 2E₂

A capacitor of 20 μF charged up to 500 V is connected in parallel with another capacitor of 10 μF which is charged up to 200 V. The common potential is :

(A) 200 V

(B) 300 V

(D) 500 V

Option c – 400 V

Putting a dielectric substance between two plates of a condenser, the capacitance, potential and potential energy respectively :

(A) increases decreases, decreases

(B) decreases, increases, increases

(D) decreases, decreases, decreases

Option a – increases decreases, decreases

Identical condensers are joined in parallel and are charged to potential V. Now, they are separated and joined in series. Then the total energy and potential difference of the combination will be :

(A) the same

(B) energy remains the same and the potential difference in nV.

(D) energy increases n times and the potential difference remains the same

Option b – energy remains the same and the potential difference in nV

A sheet of aluminum is inserted in the air gap of a parallel-plate capacitor without touching any of the two plates of a capacitor. The capacitance of the capacitor is :

(A) invariant for all positions of the sheet

(B) maximum when the sheet is midway between plates

(D) maximum when the sheet is just near the -ve plate

Option a – invariant for all positions of the sheet

Eight drops of mercury of equal radii and possessing equal charges combine to form a big drop. The capacitance of the bigger drop as compared to each smaller drop is :

(A) 8 times

(B) 4 times

(D) 2 times

Option d – 2 times

The difference in the effective capacity of two similar capacitors when joined in series and then in parallel is 6μF. The capacity of each capacitor is :

(A) 2 µF

(B) 4 µF

(D) 16 µF

Option b – 4 µF

There are 27 drops of a conducting fluid. Each has a radius r and they are charged to a potential Vo. These are combined to form a bigger drop. Its potential will be :

(A) 9Vo

(B) 27 Vo

(D) 21 Vo

Option a – 9Vo

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ISC Physics Class 11 MCQs for Students

A capacitor C₁ = 4 μF is connected in series with another capacitor C₂ = 1 µF. The combination is connected across d.c. source of 200 V. The ratio of potential across C₂ to C₁ is :

A parallel-plate capacitor has a capacitance of 50 μF in air and 110 μF when immersed in oil. The dielectric constant of oil is :

An 8μF capacitor has charged by the battery to 200 V. Then it is disconnected from the battery and two plates are connected by a wire. How much heat will be produced?

Two capacitors of 4 μF and 2 μF are charged to a potential at 500 V but with opposite polarity. The switches are then closed. Then, the ratio of the final energy to the initial energy of the system is

Due to a charged conductor, the energy density of the medium surrounding the conductor in free space is 1 J. When this conductor is placed in a medium of dielectric constant 2, the energy density will be :

The electric field intensity at a point near and outside the surface of a charged conductor of any shape is ‘E₁’. The electric field intensity due to the uniformly charged infinite thin plane sheet is ‘E₂’ The relation between ‘E₁’ and ‘E₂’ is :

A capacitor of 20 μF charged up to 500 V is connected in parallel with another capacitor of 10 μF which is charged up to 200 V. The common potential is :

Putting a dielectric substance between two plates of a condenser, the capacitance, potential and potential energy respectively :

Identical condensers are joined in parallel and are charged to potential V. Now, they are separated and joined in series. Then the total energy and potential difference of the combination will be :

A sheet of aluminum is inserted in the air gap of a parallel-plate capacitor without touching any of the two plates of a capacitor. The capacitance of the capacitor is :

Eight drops of mercury of equal radii and possessing equal charges combine to form a big drop. The capacitance of the bigger drop as compared to each smaller drop is :

The difference in the effective capacity of two similar capacitors when joined in series and then in parallel is 6μF. The capacity of each capacitor is :

There are 27 drops of a conducting fluid. Each has a radius r and they are charged to a potential Vo. These are combined to form a bigger drop. Its potential will be :

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