Question

Unit of dielectric strength is

• A. Volt /meter
• B. Newton /coulomb
• C. (Tesla) (m) /sec
• D. All of the above

Answer 1

The correct option is D All of the above

Dielectric strength is maximum field sustained by dielectric, it is a field, so it is equivalent to $\frac{F}{q}$ and unit will be Newton /coulumb.
It can also be related by volt using $Work=F.L=VQ$
Which gives $\frac{F}{q}=\frac{V}{L}$ and unit can be volt /meter.
Similarly, can be related by magnetic fielf by $F=qvB\Rightarrow \frac{F}{q}=vB$
where v is velocity and unit will be (Tesla)(m) /second.
Therefore all options are correct.