Magnetic Effect of Current — Physics STD 10 — Question

Name the physical quantity whose SI unit is Nm.

Two fuse wires of the same lengths are rated 5A and 20A. Which of the two fuse wires is thick and why?

In what way are these numbers related to the isotopes of an element?

A force F acts on a body and displaces it by a distance S in a direction at an angle θ with the direction of force.
Write the expression for the work done by the force.

State the work energy theorem.

What energy conversion takes place during the working of a d c motor?

Compare the ionising powers of α, β and γ radiations.

(a) When can an electric charge give rise to a magnetic field?
(b) A wire bent into a circle, carries current in an anticlockwise direction. What polarity does this face of coil exhibit?

A wave passes from one medium to another medium. Mention the property of the wave which changes.

How does the distance of separation between two bodies affect the magnitude of the non-contact force between them?