NEET Physics Electrostatic Potential and Capacitance Class 12 Questions
211 questions
Which of the following correctly represents the variation of electric potential (V) of a charged spherical conductor of radius (R) with radial distance (r) from the centre?
Three charges Q, +q and +q are placed at the vertices of a right-angled isosceles triangle as shown. The net electrostatic energy of the configuration is zero if Q is equal to
In the given circuit, rms value of current (Iₘₛ) through the resistor R is :
Three charges Q, +q and -q are placed at the vertices of an equilateral triangle of side l as shown in the figure. If the net electrostatic energy of the system is zero, then Q is equal to
Five charges q each are placed at the corners of a regular pentagon of side a. What will be the electric field at O if the charge at A is replaced by –q?
Given below are two statements:
Statement I: When the frequency of an a.c. source in a series LCR circuit increase, the current in the circuit first increases, attains a maximum value and then decreases.
Statement II: In a series LCR circuit, the value of power factor at resonance is one. In the light of given statements,
choose the most appropriate answer from the options given below:
What is the relationship between potential difference (V) and electric field (E) in the absence of a dielectric for a parallel-plate capacitor?
What is the electrostatic potential (V) at any point in a region with an electrostatic field defined as?
What happens to the potential difference across a capacitor when a dielectric slab is inserted between its plates?
What is the electric potential at a point P due to two point charges q1 and q2 located at distances r1 and r2 respectively?
What is the electric potential on the dipole axis for a point dipole at the origin?
What does the potential difference between two points in an electric field represent?
What is the electric potential of a dipole along its axis for a point dipole p at the origin?
What is the formula for the potential due to an electric dipole at a point in space?
What is the relationship between electric field E and potential difference dV according to the electrostatic principles?
What is the expression for the potential energy of a system of two charges q1 and q2 separated by a distance r?
In a system of conductors, what characterizes each conductor regarding electric potential?
What is the significance of potential difference in electrostatics?
What is the significance of the potential difference between two points in an electric field?
What is the work done by an external force when bringing a charge q from infinity to a point in the electric field of another charge Q?
What is the formula for the electric potential V at a point P due to two point charges q1 and q2?
What happens to the electrostatic potential when a negative charge is brought from infinity to a point in its electric field?
What is the energy gained by an electron when it is accelerated by a potential difference of 1 volt?
What is the significance of potential difference in electrostatics?
What is the formula for calculating the work needed to bring a charge to a point D in the presence of other charges at points A, B, and C?
Which of the following statements about potential difference is correct?
Which of the following statements about electrostatic potential and work done in moving charges are correct?
Which of the following statements about the electrostatic potential and capacitance are correct?
Which of the following statements about potential difference is correct?
Which of the following statements about the electrostatic potential and capacitance is correct?
Which of the following statements about electric potential in electrostatics is correct?
Which of the following statements about electric potential are correct?
Which of the following statements regarding potential difference is correct?
Which of the following statements about electric potential and work done in electrostatics is correct?
Which of the following statements about potential difference is correct?
Which of the following statements regarding the effect of inserting a dielectric in a capacitor is correct?
What is the change in potential energy when the orientation of a dipole changes from 0° to 60° in a uniform electric field?
What is the potential difference across the plates of a capacitor with a dielectric, given that the surface charge density s is twice the polarization surface charge density sp?
When a dielectric slab of dielectric constant K is inserted between the plates of a parallel-plate capacitor, reducing the electric field to E = E0/K, what happens to the potential difference across the capacitor?
A capacitor of 1000 pF is charged to a potential difference of 50 V. What is the electrostatic energy stored in the capacitor?
If two point charges q1 and q2 are separated by a distance r, what is the electric potential V at a point P located at a distance r1 from q1 and r2 from q2?
A 12 pF capacitor is connected to a 50 V battery. What is the electrostatic energy stored in this capacitor?
For a dipole at the origin, the electric potential V at a distance r along the dipole axis is given by V = (1/4πε₀) × (p/r²). If the dipole moment p is doubled and the distance r is halved, how does the electric potential V change?
A dipole with dipole moment is placed in a uniform electric field . If the angle between the dipole moment and the electric field is , what is the potential energy of the dipole?
A network of capacitors is connected to a 500 V supply as described in the context. If the equivalent capacitance of the network is found to be 13.3 mF, what is the total potential drop across the network of capacitors in volts?
A 600 pF capacitor is charged by a 200V supply and then disconnected. It is connected to another uncharged 600 pF capacitor. What is the final voltage across each capacitor?
A parallel plate capacitor is initially connected to a battery providing a potential difference of 100 V, then disconnected from the battery. If a dielectric material with a dielectric constant of 5 is inserted between the plates, what is the new potential difference across the plates?
A parallel plate capacitor has a dielectric inserted fully between its plates, altering the surface charge density to . If the potential difference across the capacitor plates is given by , and the dielectric is linear, which of the following is true about the relationship between and ?
Using the binomial approximation given by the NCERT context, what is the expression for the potential V at a large distance r from a dipole with dipole moment p, when the angle θ between the dipole axis and the position vector is small?
Consider two conductors with charges +Q and -Q having capacitance C. If the potential difference between the conductors is V, what is the work done in transferring a small charge dQ from the negative to the positive conductor?
Showing 50 of 211 questions