Question

Explain direction of force and magnitude of force.

Answer 1

Answer:

Current is the rate of flow of charge. So, if a current carrying wire is present in a magnetic field,it experiences a force due to the force on charges moving on it. This was proposed by Ampere.

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$\underline{ \boxed{ \red{ \sf{Direction \: of \: force }}}}:-$

The direction of force can be found with the help of Fleming's left- hand rule.

• When we stretch the thumb, the forefinger and the Central fingure perpendicular to each other and orient the forefinger along the direction of magnetic field, the Central finger along the direction of current then the thumb point's towards the direction of force.

• It is important to note that first orient the forefinger in the direction of magnetic field.

• Then, orient the Central finger in the direction of current such that the forefinger remains in the direction of the magnetic field.

$~$

$\underline{ \boxed{ \red{ \sf {Magnitude \: of \: force }}}}:-$

• Magnitude of force increases with the increase in the current flowing in the conductor.

$\mapsto \sf F∝I$

• Magnitude of force increases with the increase in the magnetic field.

$\mapsto \sf F∝B$

• Magnitude of force also increases with the length of the conductor.

$\mapsto \sf F∝l$

• Magnitude of force depends on the angle theta between current and magnetic field.

$\mapsto \sf F ∝ sin θ$

$\mapsto \sf F ∝BIl \: sin θ$

$\mapsto \sf F = BIl \: sin θ$

$\therefore$, (The proportionality constant has a value of 1 in S.I)

Answer 2

Explanation:

Answer:

Current is the rate of flow of charge. So, if a current carrying wire is present in a magnetic field,it experiences a force due to the force on charges moving on it. This was proposed by Ampere.

~

\underline{ \boxed{ \red{ \sf{Direction \: of \: force }}}}:-

Directionofforce

:−

The direction of force can be found with the help of Fleming's left- hand rule.

When we stretch the thumb, the forefinger and the Central fingure perpendicular to each other and orient the forefinger along the direction of magnetic field, the Central finger along the direction of current then the thumb point's towards the direction of force.

It is important to note that first orient the forefinger in the direction of magnetic field.

Then, orient the Central finger in the direction of current such that the forefinger remains in the direction of the magnetic field.

~

\underline{ \boxed{ \red{ \sf {Magnitude \: of \: force }}}}:-

Magnitudeofforce

:−

Magnitude of force increases with the increase in the current flowing in the conductor.

\mapsto \sf F∝I↦F∝I

Magnitude of force increases with the increase in the magnetic field.

\mapsto \sf F∝B↦F∝B

Magnitude of force also increases with the length of the conductor.

\mapsto \sf F∝l↦F∝l

Magnitude of force depends on the angle theta between current and magnetic field.

\mapsto \sf F ∝ sin θ↦F∝sinθ

\mapsto \sf F ∝BIl \: sin θ↦F∝BIlsinθ

\mapsto \sf F = BIl \: sin θ↦F=BIlsinθ

\therefore∴ , (The proportionality constant has a value of 1 in S.I)