Flashlight, why flashlight suddenly become dim or bright when shaked?

why flashlight suddenly become dim or bright when shaked?

Notify electric flux through the walls of the can is zero, Consider charge ...

Consider charge of consistent surface density (charge-per-area) everywhere on an infinite horizontal plane. In computing the electric field due to such a charge distribution one ca

Forces and nature,

How does a cat land on its feet, How Does a Cat Land on its Feet? The s...

How Does a Cat Land on its Feet? The saying is in which cats always land on their feet. This animation describes how they do this.

Density of energy state, Q. What is the density of energy states in metals?...

Q. What is the density of energy states in metals? Obtain an expression for the density of states for free electron gas in metals.   Ans.  Density of energy state is define

Determine magnitude of the charge on capacitor''s plates, A 10 farad capaci...

A 10 farad capacitor is used in a circuit. The voltage difference between the plates of the capacitor is 20 volts. What is the magnitude of the charge on each of the capacitor's pl

Atomic structure, Atoms are particles of elements, substances that could no...

Atoms are particles of elements, substances that could not break down further. In examining atomic structure through, we have to clarify this statement. An atom cannot be broken do

Draw the final image formed by two lenses, Draw the final image formed by t...

Draw the final image formed by two lenses: An optical imaging system consists of two positive lenses (L1 and L2). L1 has a focal length f 1 = 10 cm, and L2 has a focal length

Spherometer, what is radius of curvature?

what is radius of curvature?

What is group velocity, The velocity with which the group of waves travels ...

The velocity with which the group of waves travels is called as group velocity or the velocity with which a ray packet goes is called as group velocity