Curioustab
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Home
»
Electronics and Communication Engineering
»
Materials and Components
Assertion (A): Magnetism can be explained by the theory of magnetic domains. Reason (R): The existence of magnetic domains is evident from the Bitter powder patterns.
Both A and R are true and R is correct explanation of A
Both A and R are true but R is not correct explanation of A
A is true but R is false
A is false but R is true
Correct Answer:
Both A and R are true but R is not correct explanation of A
← Previous Question
Next Question→
More Questions from
Materials and Components
In crystalline solids, atoms are stacked in a regular manner.
Orbital magnetic dipole moment is due to the motion of electron in its orbit around nucleus.
In a piezoelectric crystal, the application of mechanical force will cause
A piece of iron is placed in a magnetic field
Assertion (A): If difference between static and optical dielectric constant is high, the mechanical compressiblity of that material is also high. Reason (R): For soft ions, ionic polarization per unit field is higher than that of hard ions.
Assertion (A): In Figure, the intercept of the line on y-axis is equal to N (ae + ai), where N is number of atoms/m3, ae is electronic polarizability and ai is ionic polarizability. Reason (R): ae and ai are independent of temperature.
Semi conducting materials are all
In a metal, the drift velocity of electrons in the presence of a electric field E is
Inductors used at V.H.F. are made using
Assertion (A): The resistance of a copper specimen changes by about 22% when temperature is increased from room temperature to 700°C. Reason (R): The physical properties of a material are determined mostly by the extent of impurities.
Discussion & Comments
No comments yet. Be the first to comment!
Name:
Comment:
Post Comment
Join Discussion
Discussion & Comments