Electric Force, Field, and Potential
What happens when a positively charged object is brought near another positively charged object?
Their charges cancel out
They attract each other
They combine to form a neutral object
They repel each other
How does inserting a dielectric material between two charged parallel plates affect their capacitance and stored energy assuming voltage remains constant?
Both capacitance and stored energy decrease.
Capacitance increases while stored energy remains constant.
Capacitance decreases while stored energy increases.
Both capacitance and stored energy increase.
What is the name of the fundamental force that causes two charged objects to attract or repel each other?
Gravitational force
Electrostatic force
Nuclear force
Magnetic force
What unit denotes capacitance?
Weber
Farad
Lumen
Kelvin
When comparing different configurations involving three point charges forming triangles where each has identical magnitudes but alternating signs, which arrangement minimizes net electrical force experienced by any single charge?
An isosceles triangle with like charges at the base and opposite charge at the vertex minimizes force on the base charges.
Scalene triangle with uneven angle proportions that create balanced conditions thus reducing overall force levels resulting in zero net effects on any charge given point.
Equilateral triangle where every charge affects others equivalently leading to a homogeneous distribution but not necessarily minimized forces on each charge.
Right-triangle specifying a right angle with an opposite sign that provides stability and recognizable system pattern yet doesn't ensure minimized impacts across individual charges present within the geometrical structure set up.
What happens when two protons are brought close together?
Correct repulsive electrostatic forces push them apart
One attractive gravitational pull brings them closer
Two weak nuclear forces hold them together
Three strong nuclear forces cause fusion reactions
Which law quantifies the electric force between two point charges?
Newton's Second Law
Faraday's Law of Electromagnetic Induction
Coulomb's Law
Ohm's Law

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A capacitor initially charged at voltage V now connects across a resistor R in an external circuit, causing a discharge process. Assuming ideal conditions, what can be expected about the time-dependent behavior of the current through this resistor?
An inverse linear relationship exists between current and time.
Steady flow continues until the capacitor completely discharges.
There is a sudden drop to zero after a certain period of time has elapsed.
The current's exponential decay rate is determined by the RC time constant.
What experimental design would most accurately determine the effect of charge magnitude differences on electric force without introducing mass-dependent gravitational artifacts?
Measuring deflection angles between suspended charged balloons with varied amounts of static charge applied by rubbing materials together.
Utilizing conducting spheres hanging in isolation with adjustable voltage sources while monitoring resulting angular displacement electronically.
Comparing horizontal accelerations across surfaces between static-charged plastic rods exerting influence over free-rolling conductive bearings.
Pairing unequal sizes but equally charged metallic balls on insulating stands inside close proximity then applying known charges sequentially.
Which unit is used to measure electric charge?
Sist Ram
Amperes
Volts
Coulomb