Circuits And Electric Current Short Question With Answer: General Science Cadet College Test
[toggle title=”Q.No.01: Define electricity.” state=”close”] Ans: The flow of electrons through a conductor provides electrical energy in the form of electric current. It is called electricity. [/toggle]
[toggle title=”Q.No.02: What is electric current?” state=”close”] Ans: The flow of charges through a conductor is called electric current. [/toggle]
[toggle title=”Q.No.03: What do you know about electric circuits?” state=”close”] Ans: An electric circuit is a complete path along which charges flow. [/toggle]
[toggle title=”Q.No.04: What is a conductor?” state=”close”] Ans: The materials which allow electric current to pass through them are called conductors.
e.g., copper, silver etc. [/toggle]
[toggle title=”Q.No.05: Define an insulator?” state=”close”] Ans: The materials which do not conduct electricity are called insulators.
e.g., sand, wood etc. [/toggle]
[toggle title=”Q.No.06: How a series circuit is formed?” state=”close”] Ans: If all components in an electric circuit are connected one after another in a single loop, it is called a series circuit. [/toggle]
[toggle title=”Q.No.07: Give one disadvantage of a series circuit?” state=”close”] Ans: There is only one path for current to flow. A break at any point will stop the flow of current in the whole circuit. [/toggle]
[toggle title=”Q.No.08: How a parallel circuit is formed?” state=”close”] Ans: If the components of an electric circuit are connected in two or more loops, it is called a parallel circuit. [/toggle]
[toggle title=”Q.No.09: Give an advantage of a parallel circuit.” state=”close”] Ans: There is more than one path for the current to flow. A break in any branch only stops current in that branch [/toggle]
[toggle title=”Q.No.10: Define potential difference.” state=”close”] Ans: The difference in potential between two points in a circuit or a battery is called potential difference. [/toggle]
[toggle title=”Q.No.11: What is the unit of electric current?” state=”close”] Ans: The unit of electric current is the ampere (A). [/toggle]
[toggle title=”Q.No.12: What instrument is used to measure electric current?” state=”close”] Ans: An ammeter is used to measure electric current. [/toggle]
[toggle title=”Q.No.13: What is the unit of potential difference?” state=”close”] Ans: The unit of potential difference is the volt (V). [/toggle]
[toggle title=”Q.No.14: What instrument is used to measure potential difference?” state=”close”] Ans: A voltmeter is used to measure potential difference. [/toggle]
[toggle title=”Q.No.15: What is electrical resistance?” state=”close”] Ans: Electrical resistance is the opposition to the flow of current in a conductor. [/toggle]
[toggle title=”Q.No.16: What is the unit of electrical resistance?” state=”close”] Ans: The unit of electrical resistance is the ohm (Ω). [/toggle]
[toggle title=”Q.No.17: Name one factor that affects electrical resistance.” state=”close”] Ans: The length of the conductor. Longer conductors have more resistance. [/toggle]
