Question

what an electric field is and the two ways it can be created.

Answer 1

Electric field is a three dimensional space around a charge particle in which its influence can be experienced by other charge. Or mathematically Electric field is defined as the force experienced by unit positive charge
\[E = \frac{ F }{ q_{0} }\]
Where F is given by Coulomb's Law
\[F = \frac{ kq.q_{0} }{ r^{2} }\]
So
\[E = \frac{ kq }{ r^{2} }\]
Electric field can be produced in following two ways
(1) Electric field can be produced by developing charge on an object by any method.
(2) Electric filed can be produced by a varying magnetic field.

Answer 2

Electric field can be defined as the electric force per unit charge and the field can be produce by placing any charged object in space

Answer 3

An electric field can be created by rubbing pieces of insulator with the correct sort of cloth, in a process called "charging by friction". I forget the details of what insulators - ebonite or whatever, and what cloths - fur or whatever, but, if the cloth and piece are put near a GOLD LEAF ELECTROSCOPE, then the leaves diverge indicating unbalanced charges present and hence an electric field.
An electric field can also be produced by taking two metal plates and connecting one to the plus of a battery, the other to the minus of the same battery, and keeping the plates parallel to each other, and a small distance away. This is also known as a CAPACITOR, and there is an electric field created between the plate.
Bon voyage.
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Answer 4

in order to understand the electric field first we have to know about field :
simply field region in which each point is affected by a force. you get diffrent value at diffrent points .
electric field is a region or space where a test charge experience a force
electric field i a function of positon and a vector quantity and varies from point to point
\[E = F/Q _{0}\] \[F = (1/4\pi \epsilon)(Q*Q _{0})/R ^{2}\]
\[E = KQ/R ^{2}\]
FOR N PARTICAL
\[E = K \sum_{i=1}^{N} Q _{i}/R _{i}^{2}\]