Question

The torque acting on an electric dipole of dipole moment p placed at an angle 90 degree to the electric field

Answer 1

Sin 180= 0, therefore, toque acting on the electric dipole is also zero.

Explanation:

The torque acting on an electric dipole placed in an electric field is given by the equation

• τ = pE sinθ.

• The angle formed between p and E is 180° degree.
• It is because when the dipole is placed anti parallel to the electric field, the angle between p and E is 180 degree.
• Since sin 180= 0, therefore, toque acting on the electric dipole is also zero.

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A torque of 400 N-m acting on a body of mass 40 kg produces an angular acceleration of 20 rad/s². Calculate the moment of inertia and radius of gyration of the body. ?

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Answer 2

Answer:

Explanation:

pE