Difference Between Electricity and Magnetism

 

Comparison Chart

Basis for Comparison	Electricity	Magnetism
Basic	The flow of charged particles results in electricity.	The interaction between moving charges results in an attractive or repulsive force which is called magnetism.
By cause of	Both static and moving charges.	Specifically, due to moving charges.
Monopoles	Exist	Not Exist
Feature	It is an invisible force in nature.	It is regarded as a by-product of electricity.
Associated with	Positive and negative charges.	North and south poles.
Type of pole	Monopole	Dipole
Used in	Lighting, heating, transportation, etc.	A compass needle, doors of refrigerators, MRI machines, etc.

Difference Between Positive and Negative Feedback

 

Comparison Chart

Basis for Comparison	Positive Feedback	Negative Feedback
Also called as	Regenerative feedback	Degenerative feedback
The relation between input and output	In phase	Out of phase
Overall gain	Greater than the gain of the system where feedback is not present.	Smaller than the gain of the system where feedback is absent.
Effective input	Sum of applied input and fed-back signal.	The difference between applied input and the fed-back signal
The transfer function of the system with respective feedback
Stability	Less	Comparatively more
Phase shift	0° or 360°	180°
Feedback is taken from	Non-inverting terminal of the op-amp	Inverting Terminal of op-amp
Sensitivity	Low	High
Use	In oscillators.	In amplifiers.

Difference Between Stationary and Progressive Waves

 

Comparison Chart

Basis for Comparison	Stationary Wave	Progressive Wave
Also called	Standing wave	Traveling wave
Basic	Energy is confined within the medium.	The transfer of energy from a location to another within the medium takes place.
Molecular vibration	Each particle of the wave exhibits different vibration at the same instant of time	Each particle of the wave possesses similar vibration at a different instant of time.
Amplitude characteristic of particles	Different	Same
Motion	Not transferable among the particles.	Easily transferred among the particles.
Velocity at mean position	All particles have their own maximum velocity.	All particles have similar maximum velocity.
Crests and Troughs	The crests and troughs of the waveform appear and disappear at the initial position.	The crests and troughs of the waveform move in the forward direction.
Wavelength	Double the distance present between 2 consecutive nodes or anti-nodes.	The distance between the point of similar phase at the similar time instant.