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An electric dipole of dipole moment p is placed in uniform electric field of strength E. If θ is the angle between p and E, then potential energy of the dipole becomes maximum, when θ is
- a)0°
- b)45°
- c)90°
- d)180°
Correct answer is option 'D'. Can you explain this answer?
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An electric dipole of dipole moment p is placed in uniform electric fi...
If the electric dipole moment is p and it is placed in a uniform electric field of strength E, then the torque experienced by the dipole is given by the formula:
τ = p × E
where τ is the torque, p is the dipole moment, and E is the electric field strength.
The magnitude of the torque can be calculated using the formula:
|τ| = pE sinθ
where θ is the angle between the dipole moment and the electric field.
The direction of the torque can be determined using the right-hand rule. If you point your thumb in the direction of the dipole moment and your fingers in the direction of the electric field, then the torque will be in the direction perpendicular to both the dipole moment and the electric field.
The work done in rotating the dipole by an angle θ is given by the formula:
W = -pE cosθ
where W is the work done.
The potential energy of the dipole in the electric field is given by the formula:
U = -pE cosθ
where U is the potential energy.
τ = p × E
where τ is the torque, p is the dipole moment, and E is the electric field strength.
The magnitude of the torque can be calculated using the formula:
|τ| = pE sinθ
where θ is the angle between the dipole moment and the electric field.
The direction of the torque can be determined using the right-hand rule. If you point your thumb in the direction of the dipole moment and your fingers in the direction of the electric field, then the torque will be in the direction perpendicular to both the dipole moment and the electric field.
The work done in rotating the dipole by an angle θ is given by the formula:
W = -pE cosθ
where W is the work done.
The potential energy of the dipole in the electric field is given by the formula:
U = -pE cosθ
where U is the potential energy.
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An electric dipole of dipole moment p is placed in uniform electric field of strength E. If θ is the angle between p and E, then potential energy of the dipole becomes maximum, when θ isa)0°b)45°c)90°d)180°Correct answer is option 'D'. Can you explain this answer?
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