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## Moving Charge In Magnetic Field

### Introduction:

When a charge moves in the magnetic field, a magnetic force perpendicular to both the velocity of the charge and the magnetic field acts on it. The direction is given by the right hand rule. The force is given by the charge times the vector product of velocity and magnetic field.

### Chapter Analysis:

Only 10 question has been asked from this chapter in the past 11 years with no question being asked in the year of 2010, 2015 and 2017. The last two year have seen 1 question being asked each time. 2014 and 2012 had 2 question being asked. This chapter falls in the low weighted category and we should not expect more than 1 question from this chapter in the coming papers.
The below given graph will illustrate the above-mentioned analysis:

Year 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Questions 1 1 0 1 0 2 1 2 1 0 1

The important topics to be covered from this chapter are:
• Concept of Magnetic Field
• Oersted’s Experiment
• Biot-Savart Law and its application to Current carrying circular loop

### Tips and Tricks:

Since this is a low weighted chapter, one cannot devote much time to this. Thus, one must turn to reading this chapter with smart mentality. The following points might be helpful:
1. Reading the NCERT shall be the first step towards understanding this chapter. Here is the link to the NCERT PDF version of this chapter:
2. Making Mind Maps is a must for this chapter as the topic is easily forgotten by many students.
3. Proper revision is also compulsory. Revision every fortnight will be good as the bulk chapters will make this chapter be easily forgotten is not revised.
4. One must refer to online videos for clearer understanding of the topic.

## Electromagnetic Field

### Introduction:

An electromagnetic field is a physical field produced by moving electrically charged objects. It affects the behavior of non-comoving charged objects at any distance of the field. The electromagnetic field extends indefinitely throughout space and describes the electromagnetic interaction. It is one of the four fundamental forces of nature.

### Chapter Analysis:

The last three years have not seen a single question from this chapter in the papers. However, the years before had questions, with one question being asked each year from 2012 to 2016, with 2015 having 2 questions. With 8 questions in the past 11 years, this chapter falls in the low weighted category and we should not be expecting anything more than 1 question in the coming paper.
The below given graph will illustrate the above-mentioned analysis:

Year 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Questions 0 0 0 1 2 1 1 1 0 2 0

The important topics to be covered from this chapter are:
• Ampere’s Law
• Applications of Long Straight wire
• Straight and Toroidal Solenoids

### Tips and Tricks:

Since this chapter has a relatively low weightage in NEET papers, this chapter needs to be finished quickly and precisely. The following tips might help you out:
• Reading NCERT shall be the first stop towards covering this chapter. That will make the students concept crystal clear. Here is the link for the NCERT PDF version of the chapter:
• Making a mind map of the chapter will clearly help the students in revision. Making Flash cards will also be beneficial.
• All questions from the past 10 years NEET paper must be covered.
• Along with the above points, students must practice adequate number of questions from this chapter.
• Revision once a fortnight is a must.

## Force And Torque In Magnetic Field

### Introduction:

A magnetic field exerts a force on a straight wire carrying current; it exerts a torque on a loop of wire carrying current. Torque causes an object to spin around a fixed axis. Each loop of current has a direction associated with it: its normal vector is perpendicular to the loop, in the direction given by the right thumb when the right fingers curl in the direction of the current.

### Chapter Analysis:

9 questions have been asked from this chapter in the past 11 years. Atleast 1 question has been asked in the past 5 years, with 2017 holding 2 questions. Thus, we can expect atleast 1 question from this chapter in the coming year.
The below given graph will illustrate the above-mentioned analysis:

Year 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Questions 1 1 2 1 1 0 1 0 1 1 0

The important topics to be covered from this chapter are:
• Force on a moving charge in Uniform Magnetic and Electric Fields
• Cyclotron
• Force on a Current Carrying Conductor
• Force between two parallel Current carrying conductors
• Definition of Ampere
• Torque experienced by a current loop in uniform magnetic field
• Moving Coil Galvanometer
• Current Sensitivity and Conversion to Ammeter and Voltmeter

### Tips and Tricks:

• NEET Syllabus has its base in the NCERT Textbooks and this chapter is well explained in that. So, the student must be thorough with the material present in the NCERT Book. Here is the link to NCERT PDF version of the chapter :
• This chapter is filled with small details and keywords. Hence making Flash Cards will be the best way to keep them to your memory.
• The past year questions must be practiced a number of times so that they should be on your fingers.
• Practice a large number of questions from this topic and leave no stones unturned to make this chapter one of your strengths.
• Revision every week will be appreciated as the different terms and keywords are quite likely to slip out of the mind if not revised periodically.

## Earth's Magnetism

### Introduction:

Earth’s magnetic field, also known as the geomagnetic field, is the magnetic field that extends from the Earth’s interior out into space, where it interacts with the solar wind, a stream of charged particles emanating from the Sun. The magnetic field is generated by electric currents due to the motion of convection currents of molten iron in the Earth’s outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo. The magnitude of the Earth’s magnetic field at its surface ranges from 25-65 Microteslas.

### Chapter Analysis:

The past 4 years have had 1 question being asked every year and the four years before that had no question being asked. With 8 question being asked in the past 11 years, this chapter falls in the category of low-weighted chapter and we should be expecting nothing more than 1 question from this chapter in the coming papers.
The below given graph will illustrate the above-mentioned analysis:

Year 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Questions 1 1 1 1 0 0 0 0 1 2 1

### Tips and Tricks:

Since this is a low weighted chapter, one cannot devote much time to this. Thus, one must turn to reading this chapter with smart mentality. The following points might be helpful:
1. Reading the NCERT shall be the first step towards understanding this chapter. Here is the link to the NCERT PDF version of this chapter:
2. Making Mind Maps is a must for this chapter as the topic is easily forgotten by many students.
3. Proper revision is also compulsory. Revision every fortnight will be good as the bulk chapters will make this chapter be easily forgotten is not revised.
4. One must refer to online videos for clearer understanding of the topic.

## Electromagnetic Induction

### Introduction:

Electromagnetic or magnetic induction is the production of an electromotive force across an electrical conductor in a changing magnetic field. Michael Faraday is generally credited with the discover of induction in 1831. Electromagnetic induction has found many applications including electrical components such as electric motors and generators.

### Chapter Analysis:

17 questions have been asked from this chapter in the past 11 years. The number of questions peaked in the year of 2010 when 5 question were asked making it a deal breaker. Except for the year 2016, atleast 1 question has been asked every year from this chapter hence, we should expect atleast one question from this chapter in the coming papers.
The below given graph will illustrate the above-mentioned analysis:

Year 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Questions 2 1 1 0 1 1 1 2 1 5 2

The important topics to be covered from this chapter are:
• Electromagnetic Induction
• Induced EMF and Current
• Lenz’s Law
• Eddy Currents
• Self and Mutual Induction

### Tips and Tricks:

Since this is one of the heavy weight chapter, it must be prepared with utmost dedication and sincerity. The following tips and tricks might be helpful:
1. This is a tough chapter and will require hard labor. One should start with the NCERT to set the tone for further reading. Here is the link to the NCERT PDF version of the chapter:
2. Students must further look up for interactive animations as well as video lectures for more clearer understanding.
3. Mnemonics for the various steps must be created which will convert hard work to smart work.
4. Practicing the previous year question paper is a must so that one gets acquainted with the type of question which can be expected in the coming paper.

## Alternating Current

### Introduction:

Alternating Current (AC) is an electric current which periodically reverses direction, in contrast to direct current (DC) which flows only in one direction. Alternating current is the form in which electric power is delivered to business and residences, and it is the form of electrical energy that consumers typically use when they plug kitchen appliances, televisions, fans and electric lamps into a wall socket. A common source of DC power is a battery cell in a flashlight. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage.

### Chapter Analysis:

Although no question was asked from this chapter in the past year, the 10 years before that had atleast 1 question being asked. The number of questions rose to 2 in the year of 2016, 2013 and 2011. So, this chapter falls in the category of low-weighted chapter and we should not be expecting anything more than 1 question from this chapter in the coming years.
The below given graph will illustrate the above-mentioned analysis:

Year 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Questions 0 1 1 2 1 1 2 1 2 1 1

The important topics to be covered from this chapter are:
• Alternating Currents
• Peak and RMS Value of Alternating Current/Voltage
• Reactance and Impedance
• LC Oscillations
• LCR Series Circuit
• Resonance
• Power in AC Circuits
• Wattles Current
• AC Generator and Transformer

### Tips and Tricks:

Since this chapter has a relatively low weightage in NEET papers, this chapter needs to be finished quickly and precisely. The following tips might help you out:
• Reading NCERT shall be the first stop towards covering this chapter. That will make the students concept crystal clear. Here is the link for the NCERT PDF version of the chapter:
• Making a mind map of the chapter will clearly help the students in revision. Making Flash cards will also be beneficial.
• All questions from the past 10 years NEET paper must be covered.
• Along with the above points, students must practice adequate number of questions from this chapter.
• Revision once a fortnight is a must.