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A bar magnet of the magnetic moment 5 Am2 has poles 20 cm apart. Calculate the pole strength.
- a)25 Am
- b)4 Am
- c)100 Am
- d)250 Am
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A bar magnet of the magnetic moment 5 Am2 has poles 20 cm apart. Calcu...
Magnetic dipole moment = Pole strength × Magnetic length.
Pole strength = Magnetic dipole moment / Magnetic length
Pole strength = 50.2
Pole strength = 25 Am.
Pole strength = Magnetic dipole moment / Magnetic length
Pole strength = 50.2
Pole strength = 25 Am.
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Community Answer
A bar magnet of the magnetic moment 5 Am2 has poles 20 cm apart. Calcu...
To calculate the pole strength of a bar magnet, we can use the formula:
Magnetic Moment (M) = Pole Strength (m) x Distance between Poles (d)
Given:
Magnetic Moment (M) = 5 Am^2
Distance between Poles (d) = 20 cm = 0.2 m
We need to find the pole strength (m).
Let's substitute the given values into the formula and solve for m:
5 Am^2 = m x 0.2 m
Simplifying the equation:
m = 5 Am^2 / 0.2 m
m = 25 A
Therefore, the pole strength of the bar magnet is 25 A.
Explanation:
- The magnetic moment of a magnet is a measure of its strength. It is given in the unit of Ampere-meter squared (Am^2).
- The pole strength of a magnet refers to the strength of each pole of the magnet.
- The distance between the poles is the distance between the north and south poles of the magnet.
- In this case, we are given the magnetic moment of the bar magnet (5 Am^2) and the distance between its poles (20 cm = 0.2 m).
- By rearranging the formula M = m x d, we can solve for the pole strength (m).
- Substituting the given values into the formula, we find that the pole strength is 25 A.
- The correct answer is option 'A', which corresponds to a pole strength of 25 A.
Magnetic Moment (M) = Pole Strength (m) x Distance between Poles (d)
Given:
Magnetic Moment (M) = 5 Am^2
Distance between Poles (d) = 20 cm = 0.2 m
We need to find the pole strength (m).
Let's substitute the given values into the formula and solve for m:
5 Am^2 = m x 0.2 m
Simplifying the equation:
m = 5 Am^2 / 0.2 m
m = 25 A
Therefore, the pole strength of the bar magnet is 25 A.
Explanation:
- The magnetic moment of a magnet is a measure of its strength. It is given in the unit of Ampere-meter squared (Am^2).
- The pole strength of a magnet refers to the strength of each pole of the magnet.
- The distance between the poles is the distance between the north and south poles of the magnet.
- In this case, we are given the magnetic moment of the bar magnet (5 Am^2) and the distance between its poles (20 cm = 0.2 m).
- By rearranging the formula M = m x d, we can solve for the pole strength (m).
- Substituting the given values into the formula, we find that the pole strength is 25 A.
- The correct answer is option 'A', which corresponds to a pole strength of 25 A.
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A bar magnet of the magnetic moment 5 Am2 has poles 20 cm apart. Calculate the pole strength.a)25 Amb)4 Amc)100 Amd)250 AmCorrect answer is option 'A'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about A bar magnet of the magnetic moment 5 Am2 has poles 20 cm apart. Calculate the pole strength.a)25 Amb)4 Amc)100 Amd)250 AmCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A bar magnet of the magnetic moment 5 Am2 has poles 20 cm apart. Calculate the pole strength.a)25 Amb)4 Amc)100 Amd)250 AmCorrect answer is option 'A'. Can you explain this answer?.
A bar magnet of the magnetic moment 5 Am2 has poles 20 cm apart. Calculate the pole strength.a)25 Amb)4 Amc)100 Amd)250 AmCorrect answer is option 'A'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about A bar magnet of the magnetic moment 5 Am2 has poles 20 cm apart. Calculate the pole strength.a)25 Amb)4 Amc)100 Amd)250 AmCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A bar magnet of the magnetic moment 5 Am2 has poles 20 cm apart. Calculate the pole strength.a)25 Amb)4 Amc)100 Amd)250 AmCorrect answer is option 'A'. Can you explain this answer?.
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