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Questions and Answers
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?
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 electric field strength
- The position of the dipole
- The uniformity of the electric field
- The forces on the charged ends (correct)
What is the condition for a dipole to exist in an unstable equilibrium state?
What is the condition for a dipole to exist in an unstable equilibrium state?
- When the dipole moment is zero
- When the angle between charges is 0° or 360°
- When the net force is zero
- When the angle between charges is 180° (correct)
What is the minimum potential energy of a dipole in an uniform electric field?
What is the minimum potential energy of a dipole in an uniform electric field?
- When the angle between charges is 180°
- For unstable equilibrium
- When the dipole moment is minimum
- For stable equilibrium (correct)
Which factor determines the strength of the torque experienced by a dipole in an electric field?
Which factor determines the strength of the torque experienced by a dipole in an electric field?
What happens to a dipole in a non-uniform electric field?
What happens to a dipole in a non-uniform electric field?
What does the dipole moment equation p = q × 2a represent?
What does the dipole moment equation p = q × 2a represent?
What happens when a nucleus of lower binding energy is converted into higher binding energy?
What happens when a nucleus of lower binding energy is converted into higher binding energy?
What is the process known as when a heavy nucleus is broken into two lighter nuclei with the release of energy?
What is the process known as when a heavy nucleus is broken into two lighter nuclei with the release of energy?
Which force is much stronger than the Coulomb force but acts over a short range within the nucleus?
Which force is much stronger than the Coulomb force but acts over a short range within the nucleus?
What does the nuclear force do with respect to protons and neutrons in the tiny nuclear volume?
What does the nuclear force do with respect to protons and neutrons in the tiny nuclear volume?
In the process of fusion, what happens when two light nuclei are joined to form one nucleus of higher binding energy?
In the process of fusion, what happens when two light nuclei are joined to form one nucleus of higher binding energy?
What happens to the binding energy per nucleon when a nucleus of lower binding energy is converted into higher binding energy?
What happens to the binding energy per nucleon when a nucleus of lower binding energy is converted into higher binding energy?
What is the concept behind the torque experienced by an electric dipole in an electric field?
What is the concept behind the torque experienced by an electric dipole in an electric field?
What happens to the torque experienced by an electric dipole when it is aligned parallel to the electric field lines?
What happens to the torque experienced by an electric dipole when it is aligned parallel to the electric field lines?
How does the torque on an electric dipole change if the magnitude of the electric field is increased?
How does the torque on an electric dipole change if the magnitude of the electric field is increased?
What effect does decreasing the angle between the dipole moment and electric field have on the torque experienced by the dipole?
What effect does decreasing the angle between the dipole moment and electric field have on the torque experienced by the dipole?
In which orientation will an electric dipole experience no net torque in a uniform electric field?
In which orientation will an electric dipole experience no net torque in a uniform electric field?
If an electric dipole is in equilibrium in a non-uniform electric field, what can be said about its torque?
If an electric dipole is in equilibrium in a non-uniform electric field, what can be said about its torque?
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