Question

The dimensions of h/e (h = Planck’s constant and e = electronic charge) are same as that of :

• A. Magnetic flux
• B. Electric flux
• C. Electric field
• D. Electric field

Answer 1

Answer: (A)

Magnetic flux

Answer 2

Electric potential$V \equiv \frac { d \phi } { d t }$ … (1)

(Faraday’s law)

and eV = hn (photo-electric effect)

or V =n … (2)

From Eqs. (1) and (2) we can see that magnetic flux (f) and have the same dimensions.