18 Questions
In a dipole, when the net force is zero due to an electric field and the center of mass remains fixed, what produces a net torque?
The forces on the charged ends
What is the condition for a dipole to exist in an unstable equilibrium state?
When the angle between charges is 180°
What is the minimum potential energy of a dipole in an uniform electric field?
For stable equilibrium
Which factor determines the strength of the torque experienced by a dipole in an electric field?
Orientation of the dipole
What happens to a dipole in a non-uniform electric field?
It experiences both rotary and translatory motion
What does the dipole moment equation p = q × 2a represent?
Distance between charges in a dipole
What happens when a nucleus of lower binding energy is converted into higher binding energy?
Energy is released
What is the process known as when a heavy nucleus is broken into two lighter nuclei with the release of energy?
Fission
Which force is much stronger than the Coulomb force but acts over a short range within the nucleus?
Nuclear force
What does the nuclear force do with respect to protons and neutrons in the tiny nuclear volume?
Attracts them together
In the process of fusion, what happens when two light nuclei are joined to form one nucleus of higher binding energy?
Energy is released
What happens to the binding energy per nucleon when a nucleus of lower binding energy is converted into higher binding energy?
Increases
What is the concept behind the torque experienced by an electric dipole in an electric field?
It tends to align the dipole along the field direction
What happens to the torque experienced by an electric dipole when it is aligned parallel to the electric field lines?
It decreases to zero
How does the torque on an electric dipole change if the magnitude of the electric field is increased?
Torque increases
What effect does decreasing the angle between the dipole moment and electric field have on the torque experienced by the dipole?
Torque increases
In which orientation will an electric dipole experience no net torque in a uniform electric field?
Aligned perpendicular to the field lines
If an electric dipole is in equilibrium in a non-uniform electric field, what can be said about its torque?
Torque is zero
Explore concepts of electric field lines and electric dipoles in this quiz based on Oswaal CBSE Revision Notes for Physics Class XII. Learn about the characteristics of electric field lines, their non-intersecting nature, and the formation of an electric dipole with equal and opposite charges.
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