Practice Dipole Moment (𝑝⃗) (5.2) - Electrostatics

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9 questions

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Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the formula for the dipole moment?
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Think of the quantities involved in the separation of charges.
Question 2.
What unit is the dipole moment measured in?
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Consider what units represent charge and distance.
3Question 3.
What is the correct formula for dipole moment?
- 𝑝⃗ = 𝑞 ⋅ 2𝑎
- 𝑝⃗ = 𝑞 / 2𝑎
- 𝑝⃗ = 2𝑞 ⋅ 𝑎
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Focus on what defines a dipole moment.
4Question 4.
True or False: The dipole moment is a scalar quantity.
- True
- False
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Consider the properties of vectors and scalars.
Question 5.
If an electric dipole moment is oriented at an angle of 30° with an external electric field of strength 5 N/C, calculate the torque experienced by the dipole moment of 2 × 10^{-6} C·m.
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Make sure to convert your angle to radians if necessary.
Question 6.
A dipole with a moment 3 × 10^{-7} C·m is placed in a non-uniform electric field which varies linearly. How would the force on the dipole be calculated?
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Think about how the electric field varies with position.

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