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Match the Column I (type of body) with Column II (electric field) and select the correct answer from the codes given below. Column I Column II A. Infinite plane sheet of charge p. `(lambda)/(2piepsilon_0r)` B. Infinite plane sheet of uniform thickness q. `(sigma)/(2epsilon_0)` C. Infinitely long uniformly charged straight wire r. `(sigma)/(epsilon_0)`

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Assertion: When we produce charge `q_1` on a body by rubbing it against another body which gets a charge `q_2`, in the process, then `q_1 + q_2 = 0`. Reason: Charge on an isolated system remains

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Assertion: When charges are shared between any two bodies, then no charge is really lost but some loss of energy does occur. Reason: Some energy disappears in the form of heat, sparking,

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Assertion: At macroscopic level, quantisation of charge has no practical consequence and can be ignored. Reason: `1 muC` charge contains `10^(15)` times electronic charge e

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Assertion: Mass of a body does not decreases, when it is negatively charged. Reason: Charging is not mainly due to transfer of

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Assertion: The gravitational force is the dominating force in the universe. Reason: The coulomb force is weaker than the gravitational

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Assertion: At the centre of the line joining two equal and opposite charges, `E = 0`. Reason: At the centre of the line joining two equal and similar charge, `E !=

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Assertion: A point charge is brought in an electric field, then electric field at a nearby point may increase or decrease. Reason: The electric field is dependent on the nature of

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Assertion: Acceleration of charged particle in non-uniform electric field does not depend on velocity of charged particle. Reason: Charge is an invariant

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Assertion: Electric lines of force cross each other. Reason: Electric field at a point does not superimposes to give one resultant electric

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Assertion: Away from a charge field lines gets weaker and density of field lines is less, resulting in well separated lines. Reason Only a finite number of lines can be drawn from a

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Assertion: On going away from a small electric dipole, electric field decreases. Reason: Electric field is inversely proportional to square of distance from an electric

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Assertion: If a dipole is enclosed by a surface, then according to Gauss’s law, electric flux linked with it will be zero. Reason: The charge enclosed by a surface is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Assertion: In a region, where uniform electric field exists, the net charge within volume of any size is zero. Reason: The electric flux within any closed surface in a region of uniform electric field is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Assertion: Upon displacement of charges within a closed surface, E at any point on the surface does change. Reason: The flux crossing through a closed surface is dependent on the location of charge within the

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Assertion: `E` in outside vicinity of a conductor depends only on the local charge density a and it is independent of the other charges present anywhere on the conductor. Reason: `E` in outside vicinity of a conductor is given by

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Electric Charges The physical property of matter that causes it to experience a force when placed in an electromagnetic field is called electric charge. Electric charge is a characteristic that accompanies fundamental particles, wherever they exist. The process of charging a neutral body by bringing a charged body nearby it without making contact between the two bodies is known as charging by induction.Figures given below are showing the sequential steps of charging a conductor permanently by using the process of charging by induction.When a glass rod is rubbed with silk, it becomes positively charged

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Electric Charges The physical property of matter that causes it to experience a force when placed in an electromagnetic field is called electric charge. Electric charge is a characteristic that accompanies fundamental particles, wherever they exist. The process of charging a neutral body by bringing a charged body nearby it without making contact between the two bodies is known as charging by induction.Figures given below are showing the sequential steps of charging a conductor permanently by using the process of charging by induction.Which of the following method can be used to charge a metal sphere positively without touching

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Electric Charges The physical property of matter that causes it to experience a force when placed in an electromagnetic field is called electric charge. Electric charge is a characteristic that accompanies fundamental particles, wherever they exist. The process of charging a neutral body by bringing a charged body nearby it without making contact between the two bodies is known as charging by induction.Figures given below are showing the sequential steps of charging a conductor permanently by using the process of charging by induction.We have two bodies with charge `q_1 and q_2` on them, then `q_1 + q_2 = 0`,

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Electric Charges The physical property of matter that causes it to experience a force when placed in an electromagnetic field is called electric charge. Electric charge is a characteristic that accompanies fundamental particles, wherever they exist. The process of charging a neutral body by bringing a charged body nearby it without making contact between the two bodies is known as charging by induction.Figures given below are showing the sequential steps of charging a conductor permanently by using the process of charging by induction.If an object is positively charged, theoretically, the mass of the

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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