Self Assessment- Class 10 -Science-Physics-Chapter13: Magnetic Effects Of Electric Current

Class 10 -Science-Self Assessment- Physics-Chapter13: Magnetic Effects Of Electric Current

Very Short Answer – 2 Marks

Q1. Name the law which determines the direction of magnetic field round a current–carrying solenoid. 

Q2  Name the rule by which the direction of a magnetic field inside a current–carrying solenoid is determined.  

Q3  Draw a diagram of an electromagnet. How is the polarity of the ends determined by the diagram? 

Q4  State two ways by which the strength of an electromagnet can be increased. 

Q5  Differentiate between an electromagnet and a permanent magnet.

Short Answer – 3 Marks

Q1. A freely suspended current–carrying solenoid rests along a particular direction. Explain. 

Q2. A magnetic compass is brought near a current–carrying solenoid. What will be the effect on the compass needle ? 

Q3 How is the direction of magnetic field determined inside a current–carrying solenoid ? 

Q4 State any three uses of an electromagnet.

 Q5. Differentiate between an electromagnet and a permanent magnet

Long Answer – 5 Marks

Q1. Describe an experiment to show that a magnetic field exerts a force on a currentcarrying conductor. 

Q2. Describe Fleming’s left–hand rule. 

Q3 How is an electromagnet made ? Give the principle of an electromagnet. How will you determine the polarities ?  

Q4 Explain Fleming’s right–hand rule. 

Diagram Questions

Q1. Describe the construction and working of an electric motor with the help of a diagram.

Q2. Draw magnetic field lines produced around a current carrying straight conductor passing through cardboard. How will the strength of the magnetic field change, when the point where magnetic field is to be determined, is moved away from the straight wire carrying constant current? Justify your answer.