Practice Questions
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When observing electric field lines around a positively charged sphere, which of the following characteristics is true regarding their direction and density?
A positively charged sphere pushes electric field lines straight outward, just like a balloon releasing air. Other options are incorrect because This ...
When a dielectric material is placed in a uniform electric field, which of the following statements best describes the effect on the electric field strength inside the material?
A dielectric is made of molecules that can shift small charges. Other options are incorrect because Many think the field stays the same, but the dipol...
In a parallel plate capacitor filled with a dielectric material, how does the induced charge distribution on the plates change when the dielectric is polarized in an external electric field?
When the dielectric is polarized, the dipoles inside arrange with negative ends toward the positive plate and positive ends toward the negative plate....
When a non-conductive dielectric material is placed in a uniform electric field, which of the following statements accurately describes the effect on the electric field lines and the resulting force between two point charges within the dielectric?
Inside a dielectric, the charges on the material align so that their own fields partially cancel the external field. Other options are incorrect becau...
If a magnet is moved toward a coil of wire, what will happen to the electric current in the wire according to Faraday's Law of Electromagnetic Induction?
When the magnet moves, the magnetic field through the coil changes. Other options are incorrect because Some think the current will fall because the m...
When the distance between two charged plates is increased, what is the primary effect on the electric field strength between them?
Increasing the gap makes the same amount of charge act over a larger space. Other options are incorrect because Many think a wider gap makes the field...
Electric Field Induction is to Charge Redistribution as Increasing Distance between Plates is to ?
When the plates move farther apart, the same amount of charge is spread over a larger separation. Other options are incorrect because Some students th...
A scientist is conducting an experiment with two parallel plates separated by a distance of 7 millimeters, charging one plate positively and the other negatively. She observes the current flowing through the circuit. If she decides to increase the distance between the plates to 14 millimeters, what will likely happen to the electric field strength and the current flow in the circuit?
When the plates are farther apart, the electric field, which pushes electrons, gets weaker. Other options are incorrect because The misconception is t...
Which of the following statements correctly describe the relationship between electric field strength, distance between charged plates, and capacitance? Select all that apply.
When the plates are farther apart, the electric field becomes weaker, because the same voltage is spread over a longer distance. Other options are inc...
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