Force on a Current-Carrying Conductor (Fleming's Left-Hand Rule)Practice Questions & MCQs
Practice Force on a Current-Carrying Conductor (Fleming's Left-Hand Rule) questions from Magnetic Effects of Electric Current (Class 10 Science) - important MCQs with answers and step-by-step solutions. Solve the sample questions below, then practice the full set free on the RankByte app.
Force on a Current-Carrying Conductor (Fleming's Left-Hand Rule)Quiz - Solve & Score
Q1. Which material is the best conductor?
- A.Iron
- B.Mercury
- C.Copper
- D.Silver
Answer: D. Silver
NCERT idea this hinges on: Silver. Picking the matching option: Correct, as per Table 11.2. Why the other options fail: option A) 'Iron' fails since Incorrect, the best conductor is not iron; option B) 'Mercury' is wrong because Incorrect, the best conductor is not mercury; option C) 'Copper' is incorrect: Incorrect, the best conductor is not copper. Therefore the correct option is D) Silver.
Q2. An aluminium rod carrying a current is placed in a magnetic field. What is observed?
- A.The rod is pushed (gets displaced) because a force acts on a current-carrying conductor in a magnetic field
- B.The rod does not move at all
- C.The rod becomes a permanent magnet
- D.The rod melts immediately
Answer: A. The rod is pushed (gets displaced) because a force acts on a current-carrying conductor in a magnetic field
Q3. A current-carrying straight conductor is placed in a magnetic field. Which of the following statements about the force on it is correct?
- A.It experiences a force whose direction is given by Fleming's left-hand rule
- B.It experiences no force at all
- C.The force always acts along the direction of the current
- D.The force always acts along the magnetic field
Answer: A. It experiences a force whose direction is given by Fleming's left-hand rule
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