# CBSE Class 10 Physics Magnetic Effects Of Electric Current Worksheet Set B

Read and download free pdf of CBSE Class 10 Physics Magnetic Effects Of Electric Current Worksheet Set B. Students and teachers of Class 10 Physics can get free printable Worksheets for Class 10 Physics in PDF format prepared as per the latest syllabus and examination pattern in your schools. Standard 10 students should practice questions and answers given here for Physics in Grade 10 which will help them to improve your knowledge of all important chapters and its topics. Students should also download free pdf of Class 10 Physics Worksheets prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this academic year and solve important problems provided here with solutions on daily basis to get more score in school exams and tests

CBSE Class 10 Physics Worksheet - Magnetic Effects Of Electric Current (1). Students can download these worksheets and practice them. This will help them to get better marks in examinations. Also refer to other worksheets for the same chapter and other subjects too. Use them for better understanding of the subjects.

Question. Define the term induced electric current.
Ans. Induced electric current: It is the current which is created due to the relative motion of coil or magnet. The induced current is found to be the highest when the direction of motion of the coil is at right angles to the magnetic field.

Question. The change in magnetic field lines in a coil is the cause of induced electric current in it. Name the underlying phenomenon.
Ans. The change in magnetic field lines in a coil is the cause of induced current in it and the phenomenon is electromagnetic induction.

Question. A current through a horizontal power line flows in west to east direction.
(A) What is the direction of the magnetic field at a point directly above it and at a point directly below it?
(B) Name the rule used to determine:
(1) The direction of force when a current carrying wire is placed in a strong magnetic field.
(2) magnetic field in a current carrying conductor. [Diksha]
Ans. (A) The current is in the east-west direction. Applying the right-hand thumb rule, we get that the direction of magnetic field at a point above the wire is from south to north
or anticlockwise direction. The direction of magnetic field at a point directly below the wire is north to south or clockwise direction.
(B) (1) According to Fleming’s left-hand rule, hold the forefinger, the centre finger and the thumb of your left hand at right angles to one another. Adjust your hand in such a way that
the forefinger points in the direction of the magnetic field and the centre finger points in the direction of current, then the direction in which the thumb points, gives the direction of the force acting on the conductor.
(2) According to Maxwell’s right hand thumb rule: Imagine that you are holding the current-carrying wire in your right hand so that your thumb points in the direction of current, then the direction in which your fingers encircle the wire will give the direction of the magnetic field lines around the wire.

Question. A coil of insulated copper wire is connected to a galvanometer. What would happen if a strong bar magnet is
(A) pushed into the coil?
(B) withdrawn from inside the coil?
(C) held stationary inside the coil?
Give justification for each observation.
Ans. (A) When a strong bar magnet is pushed into a coil of insulated copper wire connected to a galvanometer, we will observe a deflection in the galvanometer in one direction.
This is because current is induced in the coil in a particular direction (either clockwise or anti clockwise) due to an increasing magnetic field. This phenomenon is called electromagnetic induction.
(B) When the magnet is withdrawn from the coil, we will again observe a deflection in the galvanometer but in direction opposite to that observed in (A). This is because current is again induced in the coil but in an opposite direction due to a decreasing magnetic field.
(C) No deflection will be observed when the coil is held stationary as no current will be induced since magnetic field is not changing.

Magnetic Effects of Electric current WORKSHEET 2 SECTION A CONCEPTUAL QUESTIONS

S.No

Questions

Why do two magnetic field lines never intersect each other?

Draw a diagram to show magnetic field lines around a bar magnet.

List the factors on which the magnetic field produced by a current carrying straight conductor depends.

What is the frequency of AC current used in India?

The magnetic field in a given region is uniform. Draw a diagram to represent it

Mention two ways to increase the strength field of a solenoid.

What is meant by a magnetic field? Mention two parameters that are necessary to describe it completely.

Name and state the rule which determine the direction of magnetic field around a straight current carrying conductor.

Mention the provision of two different current ratings in our domestic circuits.

State the direction of magnetic field in the following case.

(a) Two magnets are lying side as shown below. Draw magnetic field line between poles P and Q.

(b) What does the degree of closeness of magnetic field lines near the poles signify?

Write one application of each of the following:

(a) Right hand thumb rule

(b) Fleming ‘s left hand rule

(c) Fleming’s right hand rule

A current carrying aluminium rod AB is placed in a magnetic field. The direction of magnetic field is vertically upward. How do you think the displacement of rod AB will be affected if

a) The current in the rod AB is increased

b) A stronger horse shoe magnet is used

c) Length of the rod AB is increased?

List out the differences between A.C and D.C.

Under what condition is the force experienced by a conductor placed in a magnetic field i) maximum ii) minimum

Mention the colour convention for live, neutral and earth wires.

Explain whether an alpha particle( which is a positively charged particle) will experience any force in a magnetic field if:

(i) It is placed in the field at rest

(ii) It moves in the magnetic field parallel to field lines

(iii) It moves in the magnetic field perpendicular to field lines.

Draw the schematic diagram of domestic circuit with a bulb and a fan.

A current carrying conductor produces a magnetic field around it. Is there a similar magnetic field produced around a thin beam of (i) electrons (ii) neutrons. Justify your answer.

What are the ratings of fuse wires used in domestic circuit Section B Numerical problems An electric motor of 1.5kW power rating is operated in a domestic electric circuit of current rating 5A. What would happen when it is switched ON? Give reason for your answer.

A circuit has a fuse of 5A. Find the maximum number of 100 W, 220V lamps that can be used in this circuit.

## Tags:

Click for more Physics Study Material
 CBSE Class 10 Physics Revision Worksheet CBSE Class 10 Physics Human Eye Colorful World Worksheet B CBSE Class 10 Physics Sources Of Energy Worksheet CBSE Class 10 Physics Reflection Refraction Of Light Worksheet CBSE Class 10 Physics Light Reflection And Refraction Worksheet CBSE Class 10 Physics Human Eye Colorful World Worksheet A CBSE Class 10 Physics Electricity Worksheet CBSE Class 10 Physics Magnetic Effects Of Electric Current Worksheet Set B CBSE Class 10 Physics Magnetic Effects Of Electric Current Worksheet Set A

## Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

### How To Solve Unseen Passages In English

Unseen passages may contain one or many paragraphs. This is one of the important yet easy parts for a student to get marks. Students should thoroughly study and understand the passage to answer the related questions. The unseen passages are there just to test the...

### CBSE Board Examination Scheme of Assessment 2021 2022

A. Academic session to be divided into 2 Terms with approximately 50% syllabus in each term: The syllabus for the Academic session 2021-22 will be divided into 2 terms by following a systematic approach by looking into the interconnectivity of concepts and topics by...

### Score well in Class 12 English Boards Exam

12th Board exams are an important part of students' lives. The marks obtained in the board exam decide the college in which one can study. In class 12 the syllabus of each and every subject increases vastly and it is difficult to cover up every point. In English also...

### MCQ Question based CBSE examination

For 2021-22 CBSE has launched MCQ question-based examination for Term 1 & Term 2 board examinations. The entire syllabus has been divided into two parts each including 50% of the entire syllabus. To score well, students must practice as per the new CBSE term-wise...

### CBSE Class 12 Evaluation Criteria 2021

SUMMARY OF THE POLICY FOR TABULATION OF MARKS FOR CLASS XII BOARD EXAMINATIONS 2021   1(a) Due to cancellation of the Board examinations, the assessment of theory portion of 80/70/60/50/30 marks will be done by the school based on the following:     Class...

### Moderation of Marks Class 11 and 12 Board Exams

The portal for moderation and finalization of results for Class-12 is being opened from 16.07.2021 to 22.07.2021. As Board has to declare the result latest by 31.07.2021, schools have been requested to follow the schedule strictly and complete the moderation within...

×