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Rajasthan Board Class 10 (RBSE) C10magneticeffects — practice questions

Explore 8 free C10magneticeffects questions in Rajasthan Board Class 10 (RBSE) Science. Open each question or exercise to read its content, reference answers and available explanation.

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C10magneticeffects questions and exercises with answers

Showing questions 1–8 of 8.

The magnetic field around a STRAIGHT current-carrying conductor:Read the answer and worked solution →The RIGHT-HAND THUMB RULE is used to find:Read the answer and worked solution →A SOLENOID is best described as a:Read the answer and worked solution →FLEMING'S LEFT-HAND RULE relates which three quantities mutually perpendicular?Read the answer and worked solution →An ELECTRIC MOTOR primarily converts:Read the answer and worked solution →The domestic mains supply in India is approximately:Read the answer and worked solution →A FUSE in a domestic electrical circuit:Read the answer and worked solution →Rule on these magnetism claimsRead the answer and worked solution →

Worked practice questions

The magnetic field around a STRAIGHT current-carrying conductor:

  1. Forms concentric circles around the wire
  2. Forms straight lines along the wire's length
  3. Is uniform and equal everywhere in space
  4. Points away from the wire in a fixed direction
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Correct answer: A. Forms concentric circles around the wire

A straight current-carrying conductor produces CIRCULAR magnetic field lines in planes perpendicular to the wire. The strength is proportional to current and inversely proportional to distance from the wire.

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The RIGHT-HAND THUMB RULE is used to find:

  1. The angle of refraction when light enters glass
  2. The voltage needed to drive a current in a wire
  3. The direction of magnetic field around a current-carrying wire
  4. The force experienced by a charged particle in a field
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Correct answer: C. The direction of magnetic field around a current-carrying wire

The Right-Hand Thumb Rule: hold the conductor in your right hand with thumb pointing in current direction your curling fingers give the direction of magnetic field lines around the wire.

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A SOLENOID is best described as a:

  1. Single straight current-carrying conductor
  2. Single circular current-carrying loop
  3. Compass needle inside a glass case
  4. Long coil of many insulated wire turns
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Correct answer: D. Long coil of many insulated wire turns

A solenoid is a long coil of many insulated turns of wire. When current flows, the magnetic field inside is uniform the field outside resembles a bar magnet. Inserting a soft iron core makes it an electromagnet.

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