Technician A is correct.
Electrochemical batteries can be classified into two main categories; Primary Cells and Secondary Cells.
A primary battery or cell cannot easily be recharged after use and is usually recommended to be discarded following discharge. Most primary cells are termed dry due to their capability of utilizing electrolytes contained within absorbent material.
A secondary cell, on the other hand, can be recharged electrically to their original pre-discharge condition.
Force is a push or pull which is exerted on an objects. Types of Force are
Contact forces
Non contact forces or At a distance forces
Examples of Contact forces are:
Stretching of the spring of a balance
pushing of a pram
kicking of a football
Pushing the door
Hitting the ball etc are some examples of contact forces.
some types of contact forces are given in the list below:
Applied force
Normal force
Frictional force
Tension force
Air resistance force
Spring force
Answer:
While symmetric encryption uses a single shared key to encrypt and decrypt data, asymmetric uses two separate keys
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