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NEET UG Moving Charges and Magnetism — practice questions — page 6

Explore 180 free Moving Charges and Magnetism questions in NEET UG Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Moving Charges and Magnetism questions and exercises with answers

Showing questions 151–180 of 180.

Above a certain temperature, a ferromagnet becomes a:Read the answer and worked solution →The Earth's magnetic field runs approximately from geographic:Read the answer and worked solution →Inside a diamagnetic material, the field is:Read the answer and worked solution →Diamagnetism arises in atoms whose electrons have no net:Read the answer and worked solution →The magnetic moment of a bar magnet equals that of an equivalent:Read the answer and worked solution →A bar magnet behaves like a magnetic:Read the answer and worked solution →Inside a long solenoid carrying current $I$ with $n$ turns per unit length, the magnetic field isRead the answer and worked solution →Field lines of a bar magnet differ from an electric dipole's because they:Read the answer and worked solution →Substances that are strongly magnetised in a field are:Read the answer and worked solution →Cutting a bar magnet in half gives:Read the answer and worked solution →A bar magnet can be modelled as a large number of:Read the answer and worked solution →Spot the odd one outRead the answer and worked solution →Name the magnetic classRead the answer and worked solution →True or false about magnetsRead the answer and worked solution →Magnetism and matter bingoRead the answer and worked solution →The Biot-Savart lawRead the answer and worked solution →True of the magnetic forceRead the answer and worked solution →Field and force directionsRead the answer and worked solution →Applying a field makes the domains:Read the answer and worked solution →Substances repelled by a magnetic field are:Read the answer and worked solution →A freely suspended bar magnet settles pointing:Read the answer and worked solution →The tip of a magnet pointing to geographic north is its:Read the answer and worked solution →Magnetic field lines of a bar magnet form:Read the answer and worked solution →Materials are classified by which quantity?Read the answer and worked solution →A bismuth bar near a strong magnet on the lab table is:Read the answer and worked solution →NEET · Physics · Magnetic Formula ↔ QuantityRead the answer and worked solution →Work done by a magnetic forceRead the answer and worked solution →Match the magnetism termRead the answer and worked solution →The magnetic force on a charge $q$ moving with velocity $\vec{v}$ in a magnetic field $\vec{B}$ isRead the answer and worked solution →The magnetic field at a distance $r$ from a LONG STRAIGHT wire carrying current $I$ isRead the answer and worked solution →

Worked practice questions

Above a certain temperature, a ferromagnet becomes a:

  1. Conductor
  2. Paramagnet
  3. Diamagnet
  4. Superfluid
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Correct answer: B. Paramagnet

1. Heat disrupts the cooperative domain structure. 2. The strong response is then lost. 3. The ferromagnet becomes a paramagnet. 4. So the answer is paramagnet. _Source: syllabus Physics, Ch 5 'Magnetism and Matter'_

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The Earth's magnetic field runs approximately from geographic:

  1. Top to bottom
  2. Centre outward
  3. South to north
  4. East to westward
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Correct answer: C. South to north

1. A compass needle's north end points to geographic north. 2. Field lines outside a magnet leave its north pole. 3. So the Earth's field runs from geographic south to north. 4. The answer is south to north. _Source: syllabus Physics, Ch 5 'Magnetism and Matter'_

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Inside a diamagnetic material, the field is:

  1. Squared
  2. Reduced
  3. Doubled
  4. Trebled
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Correct answer: B. Reduced

1. Field lines are repelled or expelled by such a material. 2. Fewer lines pass through the sample. 3. So the field inside is reduced. 4. The answer is reduced. _Source: syllabus Physics, Ch 5 'Magnetism and Matter'_

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