the energy carried by a photon is equal to
(planck's konstant) times (the frequency of the photon) .
planck's konstant is 6.626 x 10⁻³⁴ m²-kg/s (rounded)
voltage (v) = 120 v,
power (p) = 50.4 watts,
current flowing (i) = ?
power is nothing but the rate of doing work. hence w/t represents electric power (p).
electric power (p) = v.i watts
this equation can be used to calculate the power consumption by any electrical device that is connected in a circuit.
in the given question, we need to determine the current flowing through the circuit(bulb).
from the equation,
p = v.i watts
50.4 = 120 × i
i = 50.4/120
i = 0.42 amp
current flowing through the circuit is 0.42 amperes.
refraction, polarization, and scattering