Force on a Current-carrying Conductor Placed in a Magnetic Field

Author:Priyanka B
10th CBSE
IMPORTANT

Force on a Current-carrying Conductor Placed in a Magnetic Field: Overview

In this topic, the force acting on a current-carrying conductor in a magnetic field is explained. The given experiment helps you understand the concept in a better manner.

Important Questions on Force on a Current-carrying Conductor Placed in a Magnetic Field

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IMPORTANT

An electron moves up the page along the plane of paper and crosses a perpendicular magnetic field, which is acting along the plane of paper from left to right. The direction of the magnetic force experienced by an electron is:

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A current-carrying conductor does not experience any force, when it is placed in a magnetic field:

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When a current-carrying conductor is placed in a strong magnetic field, the direction of force is determined by

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In a current-carrying conductor, the direction of magnetic field is determined by

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Name the three factors on which the force on the current-carrying conductor depends.

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State the rule to determine the direction of force experienced by a current-carrying conductor in a magnetic field. How will this force get affected on reversing the direction of current flow?

MEDIUM
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Describe the activity that shows that a current-carrying conductor experiences a force perpendicular to its length and the external magnetic field. How does Fleming's left hand rule help us to find the direction of the force acting on the current-carrying conductor?

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A magnetic compass shows a deflection when placed near a current-carrying wire. How will the deflection of the compass get affected if the current in the wire is increased? Support your answer with a reason.

HARD
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A magnetic compass needle is placed in the plane of paper near point A as shown in figure. In which plane should a straight current-carrying conductor be placed so that it passes through A and there is no change in the deflection of the compass? Under what condition is the deflection maximum and why?

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IMPORTANT

(a) Describe an experiment with a diagram to show that force is exerted on a current-carrying conductor when placed perpendicular in a magnetic field.

(b) How will this force change if current in the conductor is increased?

(c) Name a device that uses the above principle.

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(a) Which rule helps to find the force on a current-carrying conductor in a magnetic field?

(b) State the rule.

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Describe with the help of a labelled diagram an activity to demonstrate the force acting on a current-carrying conductor due to a magnetic field.

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Under what condition does a current-carrying conductor kept in a magnetic field experience maximum force? On what other factors does the magnitude of this force depend? Name and state the rule used for determination of direction of this force.

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State the rule to determine the direction of force experienced by a current-carrying conductor in a magnetic field. How will this force get affected by doubling the magnitude of current?

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Why does a current-carrying conductor kept in a magnetic field experience force? On what factors does the direction of this force depend? Name and state the rule used for determination of direction of this force.

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Why does a current-carrying conductor kept in a magnetic field experience force? What is the direction of force acting on the conductor?

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On what factors does the magnitude of magnetic field by a current-carrying solenoid depends?

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Under what conditions does a moving charge experience:
(i) Maximum force?
(ii) Minimum force?

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IMPORTANT

State Fleming's left hand rule. A positively charged particle projected towards west is deflected towards north by a magnetic field. Find the direction of magnetic field.