Question

Write the expression for the moment of force about a given axis. Write the expression for the moment of force about a given axis.

Answer 1

Answer:

The moment of force is represented by formula \boldsymbol{\tau}=\boldsymbol{p} \boldsymbol{E} \sin \boldsymbol{\theta}

Explanation:

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Write an expression for the moment of force about a given axis

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Answers

Rajdeep11111

Rajdeep11111

T = fd

where T is Torque or moment of force

f is the force applied

d is the perpendicular distance of the line of action of force from the point of pivot

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skyfall63 Ace

The moment of force is represented by formula \boldsymbol{\tau}=\boldsymbol{p} \boldsymbol{E} \sin \boldsymbol{\theta}

Explanation:

The moment of force is defined as the force applied on the body to rotate in for a particular angular direction. It is termed as torque.

Let us consider a rod having charges of equal magnitude and opposite sign at its ends. The length of the rod is considered as 2d as the charges are forming a dipole. So when the rod is placed in an electric field. The force acting on +q is F = qE and the force acting on –q is F = -qE.

The force acting on both the ends have same magnitude but the forces are acting in opposite directions. This creates a torque in the rod.

\text{Torque} = \text{Force} \times \text{Perpendicular distance between the forces}

\text{Torque} =F \times 2 d \sin \theta

\Rightarrow \text { Torque }=q E \times 2 d \sin \theta

Since, 2qd=p

\text{Torque} =E \times p \sin \theta

Or

\text{Torque}=p E \sin \theta

Answer 2

Answer:

the expression for the moment of force about a given axis

is......

force × perpendicular distance from the point of application of force to the axis of rotation.

Explanation:

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