Magnetic Effects of Electric Current Class 10 Case Study Questions Science Chapter 13

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Last Updated on December 12, 2024 by XAM CONTENT

Hello students, we are providing case study questions for class 10 science. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 10 science. In this article, you will find case study questions for cbse class 10 science chapter 13 Magnetic Effects of Electric Current.

Chapter	Magnetic Effects of Electric Current
Type of Questions	Case Study Questions
Nature of Questions	Competency Based Questions
Board	CBSE
Class	10
Subject	Science
Useful for	Class 10 Studying Students
Answers provided	Yes
Difficulty level	Mentioned
Important Link	Class 10 Science Chapterwise Case Study

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Table of Contents

Case Study Questions on Magnetic Effects of Electric Current

Questions

Question 1:

Read the following and answer the questions given below:

An electric motor is a rotating device that converts electrical energy into mechanical energy. Electric motor is used as an important component in electric fans, refrigerators, mixers, washing machines, computers, MP3 players, etc.

An electric motor consists of a rectangular coil ABCD of insulated copper wire. The coil is placed between the two poles of a magnetic field such that the arm AB and CD are perpendicular to the direction of the magnetic field. The ends of the coil are connected to the two halves P and Q of a split ring. The inner sides of these halves are insulated and attached to an axle. The external conducting edges of P and Q touch two conducting stationary brushes X and Y, respectively, as shown in the figure.

Commercial motors use an electromagnet in place of a permanent magnet, a large number of turns of conducting wire in the current carrying coil and a soft iron core on which the coil is wound.

(i) Choose incorrect statement from the following regarding split rings.
(a) Split rings are used to reverse the direction of current in coil.
(b) Split rings are also known as commutator.
(c) Split ring is a discontinuous or a broken ring.
(d) Both (a) and (b)

(ii) Which of the following has no effect on the size of the turning effect on the coil of an electric motor?
(a) The amount of the current in the coil.
(b) The direction of the current in the coil.
(c) The number of turns in the coil.
(d) The strength of the magnetic field.

(iii) When current is switched ON, an electric fan converts
(a) mechanical energy to chemical energy
(b) electrical energy to mechanical energy
(c) chemical energy to mechanical energy
(d) mechanical energy to electrical energy.

(iv) In an electric motor, device that makes contact with the rotating rings and through them to supply current to coil is
(a) axle
(b) brushes
(c) coil
(d) split rings.

(v) In an electric motor, the direction of current in the coil changes once in each
(a) two rotations
(b) one rotation
(c) half rotation
(d) one-fourth rotation.

Answers:

(i) (d)
(ii) (b): The direction of the current has no effect on the size of the turning effect on the coil.
(iii) (b): Electric fan works on the principle of electric motor. It converts electrical energy to mechanical energy.
(iv) (b)
(v) (c)

Also check

Topics from which case study questions may be asked

Magnetic Field
Magnetic Field Lines
Magnetic Field due to a Current-Carrying Conductor
Magnetic Field due to a Current-Carrying Coil or Solenoid
Force on a Current-Carrying Conductor
Fleming’s Left Hand Rule
Electric Motor
Electromagnetic Induction
Induced Potential Difference
Induced Current
Fleming’s Right Hand Rule
Electric Generator
Direct Current (DC)
Alternating Current (AC)
Frequency of AC
Advantage of AC over DC
Domestic Electric Circuits

Case study questions from the above topics may be asked.

Helpful Links for CBSE Class 10 Science Preparation

Frequently Asked Questions (FAQs) on Magnetic Effects of Electric Current Case Study Questions

Q1: What are case study questions for CBSE examinations?

A1: Case study questions in CBSE examinations typically involve scenarios or real-life examples, requiring students to apply their understanding of concepts to solve problems or analyze situations.

Q2: Why are case study questions important for understanding class 10 science chapters?

A2: Case study questions provide a practical context for students to apply theoretical knowledge to real-world situations, fostering deeper understanding and critical thinking skills.

Q3: How should students approach answering case study questions for CBSE?

A3: Students should carefully read the case study, identify the key issues or problems presented, analyze the information provided, apply relevant concepts and principles of chemical reactions and equations, and formulate well-supported solutions or responses.

Q4: Are there any resources available online for students to practice case study questions on class 10 science chapters for CBSE exams?

A4: Yes, several educational websites offer case study questions for CBSE students preparing for science examinations. We also offer a collection of case study questions for all classes and subject on our website. Visit our website to access these questions and enhance your learning experience. If you need more case study questions for your preparation, then you visit Physics Gurukul website.

Q5: How can students effectively prepare for case study questions on Magnetic Effects of Electric Current for CBSE exams?

A5: Effective preparation strategies include regular revision of concepts, solving practice questions, analyzing case studies from previous exams, seeking clarification on doubts, and consulting with teachers or peers for guidance and support.

Q6: How can teachers incorporate case study questions on Magnetic Effects of Electric Current class 10 science into classroom teaching?

A6: Teachers can integrate case studies into lesson plans, group discussions, or interactive activities to engage students in active learning, promote problem-solving skills, and facilitate a deeper understanding of Magnetic Effects of Electric Current.

Q7: Does a current flowing in a wire always give rise to a magnetic field around it?

Ans. Yes

Q8: What is the function of carbon brushes in the electric motor?

A8: They make contact with the rotating rings of the commutator and supply current to the coil through them.

Q9: What do you understand by magnetic field?

A9: The space or region around a magnet where its influence can be felt is called magnetic field.

Q10: Can you observe the magnetic field?

A10: No, the magnetic field cannot be seen. However, the magnetic field can be traced by plotting magnetic lines of force with the help of a compass needle.

Q11: Can we use steel, instead of soft iron, for making the core of an electromagnet? Why?

A11: No. It is because of the fact that steel can’t be easily magnetised or demagnetised.

Q12: Name the transformation of energies taking place in an electric motor.

A12: Electrical energy into mechanical energy (Kinetic energy).

Q13: What happens to the strength of an electromagnet when the magnitude of current decreases?

A13: The strength of an electromagnet decreases.

Q14: What is the cause of electromagnetic induction?

A14: The electromagnetic induction is due to the relative motion between the magnet and the coil.