Which wave has the greatest amplitude?
2 answers:
Explanation:
The maximum displacement of the particles of wave is called its amplitude. The amplitude of purple wave is greatest i.e. wave A
The energy of wave is directly proportional to the square of amplitude. So, the purple wave carries the most energy i.e. wave A.
The number of oscillations or vibrations per unit time is called frequency of wave. The frequency of blue wave is largest i.e. wave C
The distance between two consecutive crests or two troughs is called the wavelength of wave. Wavelength and frequency have inverse relationship. So, the wavelength of blue wave is smallest i.e wave C
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Answer:
a) The electric field at that point is newtons per coulomb.
b) The electric force is newtons.
Explanation:
a) Let suppose that electric field is uniform, then the following electric field can be applied:
(1)
Where:
- Electric field, measured in newtons per coulomb.
- Electric force, measured in newtons.
- Electric charge, measured in coulombs.
If we know that and
, then the electric field at that point is:
The electric field at that point is newtons per coulomb.
b) If we know that and
, then the electric force is:
The electric force is newtons.