Chapter 12

NCERT
Class 10
Science
Solutions
7. State the rules for finding the direction, when : (a) A magnetic field produced around a straight conductor carrying current, (b) The force experienced by a current carrying a straight conductor placed in a magnetic field placed perpendicular to it.

Question:

State the rules for finding the direction, when :

(a) A magnetic field produced around a straight conductor carrying current,

(b) The force experienced by a current carrying a straight conductor placed in a magnetic field placed perpendicular to it.

(c) current induced in a coil due to its rotation in a magnetic field.

Answer:

(a) The direction of the magnetic field produced around a straight current carrying conductor is given by the right-hand thumb rule.

(b) The direction of the force experienced by a current-carrying straight conductor placed in a magnetic field perpendicular to it is given by Fleming's left-hand rule.

(For an explanation on page no. 290 and 293 of Textbook respectively.

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