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): For a solenoid having N turns, . Reason (R): For all magnetic materials, B increases linearly with I.
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:
A is true but R is false
Explanation:
Increase of B with I is not linear. Hence R is false.
← Previous Question
Next Question→
More Questions from
Materials and Components
The law J = σE, where J is current density, σ is electrical conductivity and E is field strength is
If ∈r' and ∈r" are the real and imaginary parts of complex dielectric constant ∈r, and δ is the loss angle. Then
Diamond is a paramagnetic material.
Assertion (A): Silicon is less sensitive to changes in temperature than germanium. Reason (R): Cut in voltage in silicon is less than that in germanium.
The number of valence electrons in pentavalent impurity is
There is no hysteresis phenomenon is any dielectric material.
The hysteresis phenomenon in ferromagnetic materials exists at all temperatures.
In paramagnetic materials
The apparent capacitance at a high angular frequency ω of an air cored capacitor having capacitance C and inductance L is given by
Ferroelectric materials are those which
Discussion & Comments
No comments yet. Be the first to comment!
Name:
Comment:
Post Comment
Join Discussion
Discussion & Comments