______ is most resistant to thermal energy transfers. a. copper wire b. aluminum foil c. water d. foam insulation
1 answer:
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Answer:
1440 × 10⁴ N/C
Explanation:
Data provided in the question:
Charge density λ1 = 0.6 μC/cm = 6 × 10⁻⁵ C/m
a = 7.5 cm = 0.075 m
Now,
Electric field due to a line charge at a distance 'a' is given as:
Ex(P) =
also,
we know
= 9 × 10⁹ Nm²/C²
Thus,
we have
Ex(P) =
therefore,
Ex(P) =
= 1440 × 10⁴ N/C