MCQ
Dielectric constant for metal is
- AZero
- ✓Infinite
- C1
- DGreater than 1
✓
Answer
Correct option: B.
Infinite
Infinite
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A series $L C R$ circuit with $L=\frac{100}{\pi} \mathrm{mH}, C=\frac{10^{-3}}{\pi} \mathrm{F}$ and $R=10 \Omega$, is connected across an ac source of $220 \mathrm{~V}, 50 \mathrm{~Hz}$ supply. The power factor of the circuit would be___________.
→The phenomenon utilised in an optical fibre is
Gauss’s law is true only if force due to a charge varies as:
An electric current flows along an insulated strip $PQ$ of a metallic conductor. The current density in the strip varies as shown in graph of figure. Which one of the following statements could explain this variation ?
→The potential at a distance R/2 from the centre of a conducting sphere of radius R will be
Which of the following plots may represent the reactance of a series $LC$ combination
→Filter circuit:
The ratio of the forces between two small spheres with constant charge $(a)$ in air $(b)$ in a medium of dielectric constant $K$ is
→For harder $X-$ rays
→A carrier wave of peak voltage $14\,V$ is used for transmitting a message signal. The peak voltage of modulating signal given to achieve a modulation index of $80\%$ will be.......$V$
→