Class 7 Exam  >  Class 7 Videos  >  Science Class 7  >  What is an Electric Circuit?

What is an Electric Circuit? Video Lecture | Science Class 7

145 videos|326 docs|55 tests

FAQs on What is an Electric Circuit? Video Lecture - Science Class 7

1. What is an electric circuit?
Ans. An electric circuit is a path in which electric current flows. It consists of electrical components, such as batteries, resistors, switches, and wires, which are connected in a closed loop.
2. How does an electric circuit work?
Ans. An electric circuit works by providing a closed path for the flow of electric current. When a voltage source, such as a battery, is connected to the circuit, it creates an electric potential difference, which pushes the electrons to flow through the circuit, creating a current.
3. What are the different types of electric circuits?
Ans. There are mainly two types of electric circuits - series circuits and parallel circuits. In a series circuit, the components are connected in a single loop, so the current is the same throughout the circuit. In a parallel circuit, the components are connected in multiple paths, so the current splits and flows through each path.
4. How do you calculate the total resistance in a series circuit?
Ans. In a series circuit, the total resistance can be calculated by adding the individual resistances of all the components. The formula to calculate the total resistance in a series circuit is: R_total = R1 + R2 + R3 + ... + Rn, where R1, R2, R3, etc., are the resistances of the components.
5. What happens if a component in a series circuit breaks?
Ans. In a series circuit, if a component breaks or becomes disconnected, the entire circuit will be interrupted, and no current will flow. This is because the circuit is a single loop, and the current must pass through each component. If one component is broken, the circuit becomes incomplete, and the flow of current stops.
145 videos|326 docs|55 tests

Up next

Explore Courses for Class 7 exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Download the FREE EduRev App
Track your progress, build streaks, highlight & save important lessons and more!
Related Searches

What is an Electric Circuit? Video Lecture | Science Class 7

,

pdf

,

video lectures

,

shortcuts and tricks

,

Important questions

,

ppt

,

Exam

,

Summary

,

Free

,

Objective type Questions

,

Previous Year Questions with Solutions

,

practice quizzes

,

past year papers

,

study material

,

mock tests for examination

,

MCQs

,

What is an Electric Circuit? Video Lecture | Science Class 7

,

Semester Notes

,

Sample Paper

,

Viva Questions

,

What is an Electric Circuit? Video Lecture | Science Class 7

,

Extra Questions

;