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Questions and Answers
Two identical metal spheres, one with a charge of $+3q$ and the other with a charge of $-q$, are brought into contact and then separated. What is the final charge on each sphere?
Two identical metal spheres, one with a charge of $+3q$ and the other with a charge of $-q$, are brought into contact and then separated. What is the final charge on each sphere?
- Both spheres have a charge of $+2q$.
- Both spheres have a charge of $+q$. (correct)
- One sphere has a charge of $+3q$ and the other has a charge of $-q$.
- One sphere is uncharged, and the other has a charge of $+2q$
Which of the following statements regarding electric field lines is NOT correct?
Which of the following statements regarding electric field lines is NOT correct?
- Electric field lines can intersect each other in regions of strong electric fields. (correct)
- Electric field lines originate from positive charges and terminate on negative charges.
- Electric field lines are a visual representation of the direction and magnitude of the electric field.
- The density of electric field lines indicates the strength of the electric field.
A proton is moved from point A to point B in an electric field. The electric potential at point A is 5V, and the electric potential at point B is 15V. If the charge of a proton is $1.602 \times 10^{-19}$ C, what is the change in electric potential energy of the proton?
A proton is moved from point A to point B in an electric field. The electric potential at point A is 5V, and the electric potential at point B is 15V. If the charge of a proton is $1.602 \times 10^{-19}$ C, what is the change in electric potential energy of the proton?
- $2.403 \times 10^{-18}$ J
- $8.01 \times 10^{-19}$ J
- $3.204 \times 10^{-18}$ J
- $1.602 \times 10^{-18}$ J (correct)
A parallel plate capacitor has a capacitance of $C$ when there is vacuum between the plates. If a dielectric material with a dielectric constant of $\kappa = 3$ is inserted between the plates, what is the new capacitance?
A parallel plate capacitor has a capacitance of $C$ when there is vacuum between the plates. If a dielectric material with a dielectric constant of $\kappa = 3$ is inserted between the plates, what is the new capacitance?
What is the net electric flux through a closed surface enclosing a dipole?
What is the net electric flux through a closed surface enclosing a dipole?
An electric dipole with a dipole moment of $p = 2 \times 10^{-30}$ Câ‹…m is placed in a uniform electric field of $E = 5 \times 10^4$ N/C. If the angle between the dipole moment and the electric field is 30 degrees, what is the magnitude of the torque on the dipole?
An electric dipole with a dipole moment of $p = 2 \times 10^{-30}$ Câ‹…m is placed in a uniform electric field of $E = 5 \times 10^4$ N/C. If the angle between the dipole moment and the electric field is 30 degrees, what is the magnitude of the torque on the dipole?
A point charge of $+2q$ is placed at the origin. A second point charge of $-q$ is placed at a distance $d$ from the origin along the x-axis. At what point on the x-axis is the electric potential zero?
A point charge of $+2q$ is placed at the origin. A second point charge of $-q$ is placed at a distance $d$ from the origin along the x-axis. At what point on the x-axis is the electric potential zero?
Consider a uniformly charged sphere of radius R with total charge Q. Which of the following statements about the electric field is correct?
Consider a uniformly charged sphere of radius R with total charge Q. Which of the following statements about the electric field is correct?
A capacitor is charged to a potential difference of V. If both the charge on each plate and the potential difference are doubled, by what factor does the energy stored in the capacitor increase?
A capacitor is charged to a potential difference of V. If both the charge on each plate and the potential difference are doubled, by what factor does the energy stored in the capacitor increase?
Two point charges, $+q$ and $-q$, are separated by a distance $d$. What is the magnitude of the electric field at a point midway between the charges?
Two point charges, $+q$ and $-q$, are separated by a distance $d$. What is the magnitude of the electric field at a point midway between the charges?
Which of the following statements accurately describes the behavior of conductors in electrostatic equilibrium?
Which of the following statements accurately describes the behavior of conductors in electrostatic equilibrium?
A parallel-plate capacitor is connected to a battery. What happens to the charge on the capacitor if the distance between the plates is doubled while the capacitor remains connected to the battery?
A parallel-plate capacitor is connected to a battery. What happens to the charge on the capacitor if the distance between the plates is doubled while the capacitor remains connected to the battery?
Charging by induction involves:
Charging by induction involves:
Which of the following is true about the conservation of electric charge?
Which of the following is true about the conservation of electric charge?
A $2 \mu F$ capacitor is charged to 12 V and then disconnected from the battery. It is then connected in parallel with an uncharged $4 \mu F$ capacitor. What is the final potential difference across each capacitor?
A $2 \mu F$ capacitor is charged to 12 V and then disconnected from the battery. It is then connected in parallel with an uncharged $4 \mu F$ capacitor. What is the final potential difference across each capacitor?
Flashcards
Electric Charge
Electric Charge
Fundamental property causing matter to experience force in an electromagnetic field.
Types of Electric Charges
Types of Electric Charges
Two types: positive (protons) and negative (electrons).
Quantization of Electric Charge
Quantization of Electric Charge
Electric charge exists in discrete amounts, multiples of elementary charge 'e'.
Conservation of Electric Charge
Conservation of Electric Charge
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Charging by Friction
Charging by Friction
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Coulomb's Law
Coulomb's Law
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Electric Field
Electric Field
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Electric Field Intensity (E)
Electric Field Intensity (E)
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Electric Field Lines
Electric Field Lines
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Electric Dipole
Electric Dipole
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Electric Flux
Electric Flux
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Gauss's Law
Gauss's Law
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Electric Potential
Electric Potential
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Conductors
Conductors
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Capacitor
Capacitor
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Study Notes
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Description
Explore the fundamental concepts of electric charge, its types (positive and negative), and the behavior of charged particles. Learn about the quantization of electric charge and its relationship to elementary particles like protons and electrons. Understand the unit of electric charge.
