A rolled-paper capacitor of value 0.02 µF is to be constructed using two strips of aluminium of width 6 cm, and, wax impregnated paper of thickness 0.06 mm whose relative permittivity is 3. The length of foil strips should be:
A. 0.3765 m
B. 0.4765 m
C. 0.5765 m
D. 0.7765 m
Answer: Option D
Related Questions on Materials and Components
For making a capacitor it is better to have a dielectric having
A. High permittivity
B. Low permittivity
C. Permittivity same as that of air
D. Permittivity which is neither high nor low
As the viscosity of a liquid increases, the relaxation time
A. Remains constant
B. Increases
C. Decreases
D. First decreases then increases

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