Podcast
Questions and Answers
What is the direction of force experienced by a positive charge in an electric field?
What is the direction of force experienced by a positive charge in an electric field?
- Independent of the electric field
- In the direction of the electric field (correct)
- Perpendicular to the electric field
- Opposite to the direction of the electric field
What is the unit of electric field intensity?
What is the unit of electric field intensity?
- Newton per Coulomb
- Volt per Meter
- Joule per Coulomb
- All of the above (correct)
If a point charge Q is placed in vacuum, what is the direction of the electric field at a point P?
If a point charge Q is placed in vacuum, what is the direction of the electric field at a point P?
- Perpendicular to the line OP
- Tangential to the charge
- Independent of the charge
- Radial from the charge (correct)
What is the principle used to find the resultant electric field intensity when there are multiple charges?
What is the principle used to find the resultant electric field intensity when there are multiple charges?
What is the dimensional formula for electric field intensity?
What is the dimensional formula for electric field intensity?
What is the condition for a metal sphere to be in equilibrium in an uniform electric field?
What is the condition for a metal sphere to be in equilibrium in an uniform electric field?
What is the direction of the force experienced by the electric dipole when placed perpendicular to an infinite line of charge?
What is the direction of the force experienced by the electric dipole when placed perpendicular to an infinite line of charge?
What is the electric flux through an area element ΔS?
What is the electric flux through an area element ΔS?
What is the unit of electric flux?
What is the unit of electric flux?
What is the mathematical representation of Gauss's law?
What is the mathematical representation of Gauss's law?
What is the angle between the electric field E and the area element ΔS?
What is the angle between the electric field E and the area element ΔS?
What is the direction of the electric field due to an infinitely long charged wire?
What is the direction of the electric field due to an infinitely long charged wire?
What is the electric field at a point due to an oscillating dipole if it is rotated by 90° about its perpendicular axis?
What is the electric field at a point due to an oscillating dipole if it is rotated by 90° about its perpendicular axis?
How does the frequency of a positively charged pendulum oscillating in a uniform electric field compare to its frequency when uncharged?
How does the frequency of a positively charged pendulum oscillating in a uniform electric field compare to its frequency when uncharged?
What is the variation of the electric field with distance from the centre of a uniformly charged non-conducting sphere of radius R?
What is the variation of the electric field with distance from the centre of a uniformly charged non-conducting sphere of radius R?
An α-particle of mass 6.4 × 10⁻²⁷ kg and charge 3.2 × 10⁻¹⁹ C is situated in a uniform electric field of 1.6 × 10⁵ V/m. What is its velocity at the end of a 2 × 10⁻² m path when it starts from rest?
An α-particle of mass 6.4 × 10⁻²⁷ kg and charge 3.2 × 10⁻¹⁹ C is situated in a uniform electric field of 1.6 × 10⁵ V/m. What is its velocity at the end of a 2 × 10⁻² m path when it starts from rest?
A circular wire of radius R carries a total charge Q distributed uniformly over its circumference. If a small length of the wire subtending an angle θ at the centre is cut off, what is the electric field at the centre due to the remaining portion?
A circular wire of radius R carries a total charge Q distributed uniformly over its circumference. If a small length of the wire subtending an angle θ at the centre is cut off, what is the electric field at the centre due to the remaining portion?
How does the electric field vary with distance x along the x-axis for a two-point charge system separated by 2a?
How does the electric field vary with distance x along the x-axis for a two-point charge system separated by 2a?
If the charges on the two point charges A and B are +Q and -Q respectively, and the force between them is F, what would be the force between them if 25% of the charge of A is transferred to B?
If the charges on the two point charges A and B are +Q and -Q respectively, and the force between them is F, what would be the force between them if 25% of the charge of A is transferred to B?
If the charge of a proton is -e and that of an electron is e + ∆e, what would be the order of ∆e if the net of electrostatic force and gravitational force between two hydrogen atoms at a distance d apart is zero?
If the charge of a proton is -e and that of an electron is e + ∆e, what would be the order of ∆e if the net of electrostatic force and gravitational force between two hydrogen atoms at a distance d apart is zero?
Two identical charged spheres suspended from a common point by two massless strings of lengths l are initially at a distance d apart. What is the nature of the force between them?
Two identical charged spheres suspended from a common point by two massless strings of lengths l are initially at a distance d apart. What is the nature of the force between them?
If the force between two point charges is F, what would be the force between them if their charges are both doubled?
If the force between two point charges is F, what would be the force between them if their charges are both doubled?
Two point charges of +Q and -Q are placed at a certain distance apart, resulting in a force F between them. What would be the force between them if the charges are interchanged?
Two point charges of +Q and -Q are placed at a certain distance apart, resulting in a force F between them. What would be the force between them if the charges are interchanged?
What is the condition for the time period of the pendulum bob to be greater than 2π?
What is the condition for the time period of the pendulum bob to be greater than 2π?
What is the dielectric constant k of the liquid if the angle θ remains the same?
What is the dielectric constant k of the liquid if the angle θ remains the same?
What is the change in momentum Dp of the particle during any time interval t?
What is the change in momentum Dp of the particle during any time interval t?
What is the electric intensity outside a charged sphere of radius R at a distance r(r > R)?
What is the electric intensity outside a charged sphere of radius R at a distance r(r > R)?
What is the velocity acquired by the electron as it travels a distance l?
What is the velocity acquired by the electron as it travels a distance l?
What is the electric field line configuration in the figure?
What is the electric field line configuration in the figure?
