Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Physics
Physics
Problem
If the capacitance of a nanocapacitor is measured in terms of a unit 'u' made by combining the electric charge 'e', Bohr radius 'a
0
', Planck's constant 'h' and speed of light 'c' then: a.
u
=
e
2
h
a
0
u = \frac{e^2h}{a_0}
u
=
a
0
e
2
h
b.
u
=
h
c
e
2
a
0
u = \frac{hc}{e^2a_0}
u
=
e
2
a
0
h
c
c.
u
=
e
2
c
h
a
0
u = \frac{e^2c}{ha_0}
u
=
h
a
0
e
2
c
d.
u
=
e
2
a
0
h
c
u = \frac{e^2a_0}{hc}
u
=
h
c
e
2
a
0
Browse the problem library