Question

4. Define the following:

(a) Electric potential (b) Electric circuit

(c) Potential difference (d) Electric current​

Answer 1

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Explanation:

rjnrfjjrkrkdnfjtmtkfmgjcitor

Answer 2

V= electric potential

K= coulomb constant

q= charge

r= distance of separation

Question:

Define the following:

(a) Electric potential

(b) Electric circuit

(c) Potential difference

(d) Electric current

Answer:

(a) electric potential

Electric potential (V) at a point is the amount of work Per unit charge needed to take a small positive test charge from a place of zero potential (infinity) to the point.

Examples:

just like mass in a gravitational field has gravitational potential energy. a positive test charge placed near a negative charge would have low potential energy analogous to the bowling ball on the ground.

(b) Electric circuit

A continuous and closed path of an electric current is called an electric circuit. an electric circuit consists of electric devices, source of electricity and wires that are connected with the help of switch.

Examples:

electric circuit part for transmitting electric current. an electric current includes a device that gives energy to the charged particles constituting the current, Such as a battery or a generator, devices that use current, such as lamps, electric motors, or computers ,and the connecting wires for transmission lines.

(c) potential difference

the amount of electric potential energy at a point is called electric potential. electric potential difference is known as voltage which is equal to the work done Per unit charge to move the charge between two points against static electric field.

Examples:

for example every battery has two terminals and its voltage ⚡️ is the potential difference between them. more fundamental the point it used to be zero volts is arbitrary . this is analogous to the fact that gravitational potential energy has an arbitrary zero such as sea level aur perhaps a lecture hall floor.

(d) Electric Current

the flow of electric charge is known as electric current. electric current is carried by moving electrons through a conductor. electric current is expressed by the rate of flow of electric charges. rate of flow means the amount of charge flowing through a particular area in unit time.

Examples:

unit of electric current ampere is defined as one coulomb of charge moving past a point in one second. if there are 6.241 × 10 18 electrons flowing through our frame in one second then the electrical current flowing through it is one Ampere.