- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
In the circuit shown in the figure, when the key is closed, the compass needle placed in the matchbox deflects. Name the force which causes this deflection.
"
In the circuit shown in the figure, when the key is closed, the compass needle placed in the matchbox deflects. It is the electromagnetic force that causes this deflection. When current starts flowing trough the wire, the a magnetic field is created around the wire that cause the needle to deflect.
- Related Articles
- Will the compass needle show deflection when the switch in the circuit shown in Fig.14.24 is closed?"
- A magnetic compass shows a deflection when placed near a current-carrying wire. How will the deflection of the compass get affected if the current in the wire is increased? Support your answer with a reason.
- Observing that the bulb does not glow in the circuit shown in Fig. (A) Boojho changed the circuit as shown in Fig. (B). He observed deflection in the magnetic compass.$(a)$. What does the deflection in magnetic compass indicate?$(b)$. Why did the bulb not glow in Fig. $(A)$?$(c)$. What would be the effect of increase in the number of turns in the coil wound around the magnetic compass in Fig. $(B)$?$(d)$. What will be observed if the number of cells are increased in the circuit shown in Fig. $(B)$?"
- What conclusion do you get from the observation that a current-carrying wire deflects a compass needle placed near it?
- Will the bulb glow in the circuit shown in the figure? Explain."
- Name three liquids, which when tested in the manner shown in Fig.14.9, may cause the magnetic needle to deflect."
- Will the bulb glow when the circuit is closed?
- When a ball is dropped from a height, its speed increases gradually. Name the force which causes this change in speed.
- In open circuit key is closed or open ?
- Find the area of the blades of the magnetic compass shown in figure. (Take $\sqrt{11}= 3.32$)."\n
- When an electric current flows through a copper wire AB as shown in figure, the wire$(a)$. deflects a magnetic needle placed near it$(b)$. becomes red hot$(c)$. gives electric shock$(d)$. behaves like a fuse"
- A compass needle is placed near a current carrying straight conductor. State your observation for the following cases and give reasons for the same in each case :(a) Magnitude of electric current is increased.(b) The compass needle is displaced away from the conductor.
- Draw the circuit diagram to represent the circuit shown in Fig.14.21."
- A child staying in a coastal region tests the drinking water and also the seawater with his tester. He finds that the compass needle deflects more in the case of seawater. Can you explain the reason?
- The bulb in the circuit shown in figure does not glow. Why? Redraw the circuit diagram by making the necessary changes in it, so that the bulb starts glowing."\n
Advertisements