The Space Between the Inner Wire of Radius a = $\kappa$

question 6

Multiple Choice

The space between the inner wire of radius a = 1 mm of a co-axial cable and the conducting shield of radius b = 8 mm is made of nylon ( $\kappa$ = 4.2) .A potential difference of 20 V is maintained between the wire and the shield.The energy stored per meter of the cable is

• A)1.12 nJ/m
• B)22.5 nJ/m
• C)44.9 nJ/m
• D)5.36 nJ/m
• E)2.68 nJ/m

---

Definitions:

Disinfectants

Disinfectants are chemical agents used to eliminate or reduce harmful microorganisms on surfaces, in water, or in the air, to prevent infection and disease spread.

Hydrogen

A chemical element with the symbol H and atomic number 1, notable for being the lightest and most abundant element in the universe.

Oxygen

A chemical element with the symbol O and atomic number 8, essential for respiration in most terrestrial life forms and used in various industrial applications.

Capacity Constraint

A limit to the amount of goods or services that can be produced or provided due to physical or resource limitations.