Question

12 multiple choice 1 point
if ma is increased or decreased, which will be adjusted?
○ currant
○ voltage

13 multiple choice 1 point
will voltage affect electron energy?
○ yes
○ no

14 multiple choice 1 point
will voltage affect photon energy?
○ yes
○ no

Explanation:

Question 12

mA (milliamperes) is a unit of current. If mA (current) changes, voltage is adjusted (Ohm's law: \( V = IR \), so current change affects voltage adjustment). "currant" is a fruit, irrelevant.

Voltage is related to electric potential energy. Electrons gain energy from voltage (e.g., in a circuit, higher voltage means more energy per electron). So voltage affects electron energy.

Photon energy is \( E = hf \) (depends on frequency \( f \)), not voltage. Voltage affects electron energy, not photon energy (photon energy is quantum - mechanical, related to frequency/wavelength).

Answer:

voltage (the option with "voltage" text)

Question 13