Electric Circuits
Which term describes the amount of electric charge in the universe?
Transfer
Creation
Conservation
Dispersal
If two objects are rubbed together and one becomes positively charged, what happens to the other object?
It remains neutral
It becomes negatively charged
It also becomes positively charged
Its mass increases
Who is credited with proposing that electricity could be quantized into discrete units called charges?
Albert Einstein
Benjamin Franklin
James Clerk Maxwell
Niels Bohr
Assuming that Coulomb's law still holds true but electrostatic attraction now scales with distance () instead (), how does this affect potential energy () stored in bringing two like-charges from infinity to finite distance apart?
U decreases linearly rather than quadratically as an additional dimension provides avenues for the release of excess energy, potentially rendering the approach easier and thus lowering the accumulation of necessary movement to bring the two objects from far apart to a close-together state.
U increases more exponentially than the inverse-square model would predict since the greater force must overcome the earlier trajectory leading to higher accumulated values overall compared to the gradual build-up seen in the prevailing current situation.
U increases at a rate slower than that given by inverse square relationship as decreases due to weaker repulsion over larger relative distances involved in bringing them closer together initially before intensifying sharply near final position.
U decreases at a rate faster than that given by inverse square relationship as decreases because work done against stronger repulsive forces over smaller distances increases rapidly.
If two capacitors with different capacitances are connected in series, how does the equivalent capacitance compare to the smallest individual capacitor?
Equal to the sum of both individual capacitors
Equal to the average of both individual capacitors
Greater than the largest individual capacitor
Less than the smallest individual capacitor
How might one design an elaborate laboratory investigation that can quantify potential variations inherent within Coulomb's law at nanoscale separations between charged particles sidestepping any instrumental artifacts typical nanomeasurement techniques named Casimir effect influence?
Creating precision-focused microelectromechanical systems(MEMS)-based force sensors equipped feedback-controlled piezoelectric actuators adjusting particle distances dynamically cross-validated via atomic_force_microscopy(AFM) scans circumventing background noise fluctuations ..
Constructing large scale pendulum-style experiments involving masses hanging threads exposed electrical fields testing variations classical gravitational laws compared instead expecting glean insights about short-range electrostatic interactions therein....
Developing computer simulation models based simplified point-like representations physical bodies interacting per standard formulas hoping extrapolate real-world behaviors from abstract computations lacking empirical corroboration ....
Applying traditional balance scales comparing counterweights established standards mass verification assuming linear proportionality holds true even subatomic levels thereby overlooking requisite high-resolution metrology techniques necessitated context posed question ...
When two objects are rubbed together, which results in transferring electrons from one object to another, what occurs?
Electrochemical reaction
Magnetic induction
Triboelectric effect
Static discharge

How are we doing?
Give us your feedback and let us know how we can improve
In designing an experiment to confirm conservation of electric charge, what setup could accurately detect small discrepancies in charge conservation due to undetected leakage currents?
A highly insulated Faraday cage containing charged objects along with sensitive electrometers connected for long-duration monitoring.
An electroscope attached externally to a charged metal sphere without any environmental controls.
Using light bulbs as indicators in simple circuits when adding or removing batteries and capacitors.
A Van de Graaff generator running continuously while measuring its surface potential over time.
When monochromatic light is shone onto a metal surface causing electron emission, what must increase to release more energetic electrons?
Incorrect answer
Frequency of the incident light
Incorrect answer
Incorrect answer
What is added to or removed from an object when it becomes charged?
Neutrons
Protons
Electrons