Electromotive Force (E.M.F.) Vs Potential Difference

Electromotive Force (E.M.F.) or Cell Potential	Potential Difference
It is the potential difference between the two electrodes when no current is flowing in the circuit i.e., in an open circuit.	It is the difference of the electrode potentials of the two electrodes when the cell is sending current through the circuit.
It transmits current both inside and outside the cell.	It transfers current between any two points in the circuit.
E.m.f. is the cause.	Potential difference is the result.
It is maximum voltage obtainable from the cell.	It is less than the maximum voltage obtainable from the cell (i.e., e.m.f. of the cell).
The work calculated from e.m.f. is the maximum work obtainable from the cell.	The work calculated from potential difference is less than the maximum work obtainable from the cell.
It is responsible for the flow of steady current in the cell.	It is not responsible for the flow of steady current in the cell.
It does not depend on the resistance of the circuit.	Potential difference of two points depends on the resistance of those points.
The part of the circuit where electrical energy is created from any other energy then that part contains the source of Electromotive force.	Potential difference exists in the part of the circuit where electrical potential energy is transformed into another form of energy.

Deoxyribonucleic Acid (DNA) Vs Ribonucleic Acid (RNA)

Deoxyribonucleic Acid (DNA)	Ribonucleic Acid (RNA)
It occurs mainly in the nucleus of the cell.	It occurs in the cytoplasm of the cell.
It has double stranded α-helix structure in which two strands are coiled spirally in opposite directions.	It has single stranded α -helix structure.
The sugar molecule is 2-deoxyribose.	The sugar molecule is ribose.
Nitrogenous base uracil is not present.	Nitrogenous base thymine is not present.
It has the unique property of replication.	It usually does not replicate.
It is responsible for the transmission for heredity character.	It helps in protein biosynthesis.
DNA molecules are very large, their molecular masses may vary from 6 X 106 – 16 X 106 u.	RNA molecules are much smaller with molecular mass ranging from 2 X 104 – 4 X 104 u.

Data at Rest Vs Data in Motion

Data at Rest	Data in Motion
The data that is not actively moving from device to device or network to network such as data stored on a hard drive, laptop etc. is called data at rest.	The data which is actively moving from one location to another such as across the internet or through a private is called data in motion.
It also refers to data that has been collected from various sources and is then analyzed after the event occurs.	This type of data is analyzed in real-time as the event happens.
The point where the data is analyzed and the point where action is taken on it occur at two separate times.	Analysis and action on data is taken at same time.
Batch processing method is used.	Real-time processing method is used.
It is more secure.	It is less secure.
It is less vulnerable to attack.	It is more vulnerable to attack.
Simple file and folder protection techniques are used to protect the data.	Encryption protocols like HTTPS, SSL, FTPS are used to protect the data.