Magnetic Field and Magnetic Lines of Force

The space around a magnet, where magnetic force can be felt by a magnetic body is called magnetic field of that magnet. This note provide us the information of magnetism, neutral point and properties of magnet.

Summary

The space around a magnet, where magnetic force can be felt by a magnetic body is called magnetic field of that magnet. This note provide us the information of magnetism, neutral point and properties of magnet.

Things to Remember

  • The space around a magnet, where magnetic force can be felt by a magnetic body is called magnetic field of that magnet.
  • A magnetic line of force is a line, straight or curved, the tangent to which at any point gives the direction of the magnetic field at that point.
  • A neutral point in a magnetic field is a point at which the horizontal component of earth’s magnetic field and the magnetic field due to magnet are exactly equal and opposite.
  • The earth’s magnetism is called terrestrial magnetism

MCQs

No MCQs found.

Subjective Questions

Q1:

What is the full form of GAAP?


Type: Very_short Difficulty: Easy

Show/Hide Answer
Answer: <p>The full form of GAAP is Generally Accepted Accounting Principles.</p>

Q2:

Write in short about business entity concept.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>The business entityconcept states that the business and its owners are two separate and distinct entities and the business is established to continue its transactions over a long period of time. For accounting purpose, every business enterprises are treated as a separate entity which is distinct from its owner. The financial transactions are to be recorded from the viewpoint of the business and not from the viewpoint of its owner. Such distinction is essential to ascertain the true financial picture of the business.</p>

Q3:

Explain in short about money measurement concept.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Money measurement concept assumes that only those transactions which can be measured and expressed in terms of monetary value i.e. Rupee, Dollar, etc. have to be taken into account. Under this concept, all the business transactions relating to goods, assets and liabilities are to be recorded in their monetary value.</p>

Q4:

Explain in brief about dual concept.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>The dual concept states that every business transaction has two-fold effects. When the transaction is performed, its effect is made on two different accounts. If one account is debited; another account must be credited with the equal amount. This concept of duality in transactions always equalizes the assets and liabilities in the balance sheet.</p>

Q5:

Explain in brief about matching concept.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>The matching concept is a guideline for determining the profit or loss of a business. According to this concept, the revenue earned has to be compared with the expenses incurred in the same period to determine the true profit or loss of the business. If the amount of revenue is more than expenses, the result is net profit but if the amount of revenue is less than expenses, the result is a net loss.</p>

Q6:

Explain in brief about realization concept.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>The realizationconcept states that revenue is assumed to be earned when goods are sold or services rendered to the customers either on cash or credit. It is not compulsory that revenue must realize in cash at the time of selling goods and rendering services. At the end of the year, there may be outstanding expenses and accrued incomes. Such expenses and incomes should be considered while preparing financial statements.</p>

Q7:

Explain in brief about cost concept.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>The costconcept implies that when the fixed assets are purchased they are to be recorded in the books of accounts at their cost price. The valuation of the assets is not made on its market price. The balance sheet always shows the value of fixed assets after deducting the amount of depreciation from their cost price.</p>

Q8:

Explain in brief about accounting period concept.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Accounting period concept implies that the total life of the business is divided into different imaginary time intervals and such time interval contains 12 months for the purpose of recording and reporting the financial performance to the concerned parties. Each time travel interval contains normally one year which is known as accounting period. In Nepal, accounting period begins on 1st Shawan of every year and ends on the last day of Ashadh of the next year. At the end of accounting period, financial statements are prepared to determine the profit or loss and financial position of the business.</p>

Videos

Basic Accounting Concepts
Basic Accounting Concepts
The Going Concern Concept
Basic Accounting Concepts
Magnetic Field and Magnetic Lines of Force

Magnetic Field and Magnetic Lines of Force

Magnetic field

The space around a magnet, where magnetic force can be felt by a magnetic body is called the magnetic field of that magnet. The field can be represented by lines, called magnetic lines of force.

A magnetic line of force is a line, straight or curved, the tangent to which at any point gives the direction of the magnetic field at that point.

Properties of magnetic lines of force:

  • Magnetic lines of force start from the North Pole and reach the South Pole externally and then go from the South Pole to the North Pole internally.
  • The magnetic lines of force never intersect.
  • Magnetic lines of force are crowded near the poles, as the field is strong and are widely separated, where the field is weak.

Neutral Point

When two magnetic field i.e. magnetic field of earth's magnet and bar magnet acts in the same place, the resultant field has a special character. When we placed the magnetic needle at any particular point, then the needle does not show any direction at that point as there is no net magnetic field at that point. This point is known as a null point or neutral point.

The given figure A and B show the neutral point. Here, in figure A, when north pole of the magnet points south and magnet in the magnetic meridian, the horizontal component of the earth's magnetic field and bar magnet becomes equal and opposite in point X, which is the neutral point. In figure B, when the north pole of the magnet points geographic north, the neutral point lie towards the lateral side at point X.
A neutral point in a magnetic field is a point at which the horizontal component of earth’s magnetic field and the magnetic field due to the magnet are exactly equal and opposite. At the neutral point, the lines of force will not pass and compass needle will not point in any fixed direction.
In other words, 'A neutral point in a magnetic field is a point at which the horizontal component of earth’s magnetic field and the magnetic field due to the magnet are exactly equal and opposite. At the neutral point, the lines of force will not pass and compass needle will not point in any fixed direction'.

Properties of magnet

  • A magnet attracts magnetic bodies.
  • A freely suspended magnet points north-south direction.
  • Like poles of a magnet repel and unlike poles of a magnet attract.
  • A magnet has two poles: The North Pole and the South Pole.
  • A magnetic material gets magnetized due to the presence of a magnet. It is called magnetic induction.

Lesson

Electricity and Magnetism

Subject

Science

Grade

Grade 9

Recent Notes

No recent notes.

Related Notes

No related notes.