Assertion: Friction opposite relative motion and thereby dissiplates power in the from of heat.
Reason: Friction is always an undesirable force.

Assertion: Friction opposes relative motion and thereby dissipates power in the from of heat. Reason: Friction is always an undesirable force.

Assertion: Friction opposes relative motion and thereby dissipates power in the form of heat. Reason: Friction is always an undesirable force.

Does friction always oppose the motion?

Does friction always oppose the motion?

Assertion : Eddy currents heat up the core and dissipate electrical energy in the form of heat. Reason : Eddy currents are always undesirable.

Assertion : Eddy currents heat up the core and dissipate electrical energy in the form of heat. Reason : Eddy currents are always undesirable.

These questions consists of two statements each printed as Assertion and Reason. While answering these question you are required to choose any one of the following four responses Assertion: Friction always opposes the relative motion of two bodies. Reason: Without friction also, one can move on a smooth surface.

Assertion: Frictional force is the component of contact force parallel to the surface. Reason: Friction force always opposes the motion of a body.

Assertion: Frictional force is the component of contact force parallel to the surface. Reason: Friction force always opposes the motion of a body.