In the equation I = nAve, what does n represent?

The number density of charge carriers

Why does a filament lamp not obey Ohm's law?

Its temperature, and so its resistance, rises as the current increases

Less than the EMF by the lost volts Ir

The angle of incidence exceeds the critical angle

Increases the number of electrons emitted per second

Work function, the minimum energy to free an electron

11questions. Pick an answer and you'll see why right away.

In the equation I = nAve, what does n represent?
Why does a filament lamp not obey Ohm's law?
A wire is replaced by one of the same material but twice the length and the same cross-sectional area. Its resistance:
Kirchhoff's first law is a statement of the conservation of which quantity?
A cell of EMF 1.5 V has internal resistance r. When it drives a current, the terminal voltage is:
The fact that light can be polarised is evidence that light is:
For a diffraction grating, bright maxima occur at angles given by which equation?
Light travels from glass into air. Total internal reflection can occur when:
In the photoelectric effect, increasing the intensity of light above the threshold frequency:
In Einstein's photoelectric equation hf = phi + E_k(max), the term phi is the:
Which process is responsible for producing the coherent, in-phase photons in a laser?