(a) A current-carrying conductor is placed perpendicularly in a magnetic field. Name the rule which can be used to find the direction of force acting on the conductor.

(b) State two ways to increase the force on a current-carrying conductor in a magnetic field.

(c) Name one device whose working depends on the force exerted on a current-carrying coil placed in a magnetic field.

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Solution

(a) Fleming’s left-hand rule

(b) The force on a current-carrying conductor in a magnetic field can be increased by increasing the current flowing through the conductor or by increasing the strength of the magnetic field.

(c) Electric motor

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Similar questions

Q. Name and state the rule which is used to determine the direction of force on a current carrying conductor placed in a magnetic field.

Q. (a) Write Fleming's left-hand rule for the direction of force on a current carrying conductor placed in a magnetic field.
(b) Draw a diagram to show lines of magnetic field inside and around a current carrying solenoid.
(c) Write the names of four devices where current carrying conductor is used along with magnetic fields.

Q. State the rule to determine the direction of a
(a) magnetic field produced around a straight conductor-carrying current,
(b) force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it, and
(c) current induced in a coil due to its rotation in a magnetic field

Name and state the rule to find the direction of :

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

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

A current carrying conductor placed in magnetic field experiences a force. The amount of force experienced by a current carrying conductor in magnetic field can be increased by:

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(a) Fleming’s left-hand rule (b) The force on a current-carrying conductor in a magnetic field can be increased by increasing the current flowing through the conductor or by increasing the strength of the magnetic field. (c) Electric motor

(a) Fleming’s left-hand rule

(b) The force on a current-carrying conductor in a magnetic field can be increased by increasing the current flowing through the conductor or by increasing the strength of the magnetic field.

(c) Electric motor