Electric Force, Field, and Potential
What does Ohm's Law state about the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit?
V = I/R because the voltage equals current divided by resistance.
V = IR because voltage is equal to the product of current and resistance.
R = VI because resistance is the product of voltage and current.
I = VR because current equals dividing voltage by resistance.
In which scenario would an alpha particle (a helium nucleus) experience no net force while moving in combined electric and magnetic fields?
When it travels at any angle as long as both fields have equal strength.
When it travels parallel to both fields if they are also parallel to each other.
When it travels perpendicular to the electric field and parallel to the magnetic field.
When it travels perpendicular to both fields if they are parallel.
What type of energy conversion occurs in a photocell (solar cell) when light shines on it?
Heat to electric energy via thermionic emission due to light absorption raising temperature.
Chemical to electrical energy via photosynthesis-like reactions driven by light exposure.
Mechanical to electric energy via piezoelectric effect induced by photon pressure.
Electromagnetic radiation to electric energy via the photoelectric effect.
In an ideal capacitor that has been fully charged, where is the energy stored?
Within the dielectric material only
In the chemical bonds of capacitor materials
In the electric field between the plates
At one specific plate, either positive or negative
If you were able connect multiple batteries series increasing total voltage circuit how would power supplied device connected that circuit change assuming resistance stays same?
No, since it is already providing the maximum possible power limited by design.
Decreases, as the effective voltage dropped across each individual battery is reducing the overall power.
The power supplied to the device connected to that circuit would increase because Ohm's Law states that Voltage equals Current times Resistance, and the new higher voltage will result in increased current, hence delivering more power.
Remains steady, only the capacity or duration supplied is extended.
Which device is typically used to measure electric potential difference between two points in a circuit?
Ohmmeter
Wattmeter
Ammeter
Voltmeter
How does the electric potential energy change when two like-charged particles are moved farther apart?
It remains constant because electrical forces are conservative.
It decreases because work is done by the electrostatic force.
It becomes zero as the particles are separated infinitely far apart.
It increases because work is done against the electrostatic force.

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What formula correctly describes power dissipated in a resistor using current and resistance?
If an electron travels through a uniform electric field and its kinetic energy doubles, what can we infer about its displacement in the direction of the field?
The displacement remains unchanged since kinetic energy does not depend on position in a uniform field.
The displacement has doubled, assuming no other forces act on it.
The displacement has quadrupled based on kinematic equations for uniformly accelerated motion.
The electron's displacement cannot be determined without knowing its mass and charge.
What outcome can be expected if Planck’s constant was found to be twice as large when calculating photoelectric effect-induced current from a photovoltaic cell exposed to monochromatic light?
Current exhibits undetermined behavior contingent upon interacting variables linked via new quantum dynamic principles introduced by altered h-bar.
Current doubles positing that higher Planck’s implies greater photon momentum transfer & thus more ejected electrons per event.
No change occurs since current generation depends primarily on photon frequency above threshold value rather than Planck’s constant directly.
Current reduces by half assuming double Planck’s yields fewer but energetic photons causing less frequent electron emissions.