Very weak magnetic fields are detected by___________________?

Related Mcqs:

A wire of length L is stretched by a length E when a force F is applied at one end. If the elastic limit is not exceeded the amount of energy stored in the wire is_________________?

A. FE B. (FE) C. FE2/L D. FE2...

If the density of atoms remain same along any direction in a crystal is called__________________?

A. Symmetry B. Homogeneity C. Isotropy D. Cleavage...

The band theory of solids explains satisfactorily the nature of_________________?

A. Electrical insulators alone B. Electrical conductors alone C. Electrical semi conductors alone D. All of the above...

A wire obeys Hooks law is of length 11 when it is in equilibrium under a tension F1. Its length becomes 12 when the tension is increased to F2. The energy stored in the wire during this process is____________________?

A. (F1+F2) (121+122) B. (F1+F2) (122-112) C. (F1+F2) (12-11) D. (F1+F2) (12-11)...

In a semiconductors the charge carriers are ___________________?

A. Holes only B. Electrons only C. Electron and holes both D. All of the above...