Book: Xam idea - Science

Chapter: 13. Magnetic Effects of Electric Current

Subject: Physics - Class 10th

Q. No. 23 of Proficiency Exercise

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23
a. A stationary charge is place in a magnetic field. Will it experience a force? Give reason to justify your answer.b. On what factors does the direction of force experienced by a conductor when placed in a magnetic field depend?c. Under what conditions is the force experienced by a current carrying conductor placed in a uniform magnetic field maximum?d. under what conditions is the force experienced by a current carrying conductor placed in a uniform magnetic field maximum?

a.
A magnetic field exerts force only on moving charges. So, a stationary charge kept in a magnetic field does not experience any force until it starts moving.
b. The direction of force experienced by a current carrying conductor placed in a magnetic field depends on:

● the direction of the current in the conductor

● direction of the magnetic field applied

c. The force experienced by a current carrying conductor placed in a uniform magnetic field is maximum when the current makes right angle with the magnetic field.

d. The force experienced by a current carrying conductor placed in a uniform magnetic field is maximum when the current makes right angle with the magnetic field.

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