CUET Preparation Today
Which of the following statements is INCORRECT? |
A moving charge produces a magnetic field which in turn exerts a force on another moving charge. An electric charge always experiences a force in an electric field, whether the charge is stationary or in motion. A charge moving parallel or antiparallel to the direction of the magnetic field experiences a magnetic Lorentz force. A stationary charge does not produce any magnetic field to interact with an external magnetic field. |
A charge moving parallel or antiparallel to the direction of the magnetic field experiences a magnetic Lorentz force. |
The correct answer is Option (3) → A charge moving parallel or antiparallel to the direction of the magnetic field experiences a magnetic Lorentz force. Analysis of statements: ✅ A moving charge produces a magnetic field which can exert a force on another moving charge – True ✅ An electric charge always experiences a force in an electric field, whether stationary or moving – True ❌ A charge moving parallel or antiparallel to the magnetic field experiences a magnetic Lorentz force – False; magnetic force is $F = q \mathbf{v} \times \mathbf{B}$ and is zero if velocity is parallel or antiparallel to $\mathbf{B}$ ✅ A stationary charge does not produce a magnetic field to interact with an external magnetic field – True Incorrect statement: A charge moving parallel or antiparallel to the direction of the magnetic field experiences a magnetic Lorentz force |
