MCQ
Dielectrics are ____ substances.
  • A
    Conducting.
  • B
    Non conducting.
  • C
    Both a and b.
  • D
    None.

Answer

  1. Non conducting.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

In series combination of R, L, C with an A.C source at resonanace, if R = 20 ohm, then impedence Z of the combination is.

Which of the following is not the unit of self inductance

(a) Weber/Ampere

(b) Ohm-Second

(c) Joule-Ampere

(d) Joule Ampere–2

Which of the following cannot cause fission in a heavy nucleus

(a) a-particle

(b) Proton

(c) Deutron

(d) Laser rays

_______ exists in the region surrounding a magnet, in which force of the magnet can be detected.
An electromagnetic wave going through vacuum is described by $\text{E}=\text{E}_0\sin(\text{kx}-\omega\text{t}),\text{ B}=\text{B}_0\sin(\text{kx}-\omega\text{t})$ Then:

  1. $\text{E}_0\text{k}=\text{B}_0\omega$

  2. $\text{E}_0\text{B}_0=\omega\text{k}$

  3. $\text{E}_0\omega=\text{B}_0\text{k}$

  4. None of these.

For which colour, the angle of deviation is maximum when light enters into glass from air?
 The EM waves when travel into different media gets:
A charged particle is whirled in a horizontal circle on a frictionless table by attaching it to a string fixed at one point. If a magnetic field is switched on in the vertical direction the tension in the string.

Two charges are at a distance ‘d’ apart. If a copper plate (conducting medium) of thickness  is placed between them, the effective force will be

(a) 2F       

(b) F / 2

(c) 0

(d)  

If $\mu_c$ and $\mu_h$ are electron and hole mobility, E be the applied electric field, the current density j for intrinsic semiconductor is equal to