1. To produce a larger electric field, you must: A. Increase the potential diffe
ID: 1784528 • Letter: 1
Question
1. To produce a larger electric field, you must:A. Increase the potential difference B. Increase the distance between the plates C. Decrease the potential difference D. Decrease the charge on the plates
2. The amount of solution that penetrated the protective layer is _____ proportional to the electric field A. Directly B. Inversely C. Double D. Not
Researchers have developed a way to kill even the most stubborn bacterial mats, also known as bioflims, Bo, which ca n as biofilms. Biofilm bacteria, which cause a variety of medical and industrial problems, Researchers have now developed an efficient and inexpensive technique to kill biofilm In the pipe below the levels of electric field were induced and the amount of biocide grow as a thin organic layer on inert surfaces ranging from water pipes to prosthetic implants. bacteria. Their method uses low-level electrical fields to push antibiotics or biocide solutions through the biofilm's protective slime, directly attacking the underlying bacteria solution recorded. Electric Field 50 N/C 100 N/C 150 N/C 200 N/C Solution 0.01 x 10-3 0.02 x 10 0.025 x 10-3 0.027 x 103
Explanation / Answer
1. To produce a larger electric field, you must:
A. Increase the potential difference
the remaining options are irrelevant
because V = E*d
if the distance between the plates increases the electric field decreases
Decreasing potential difference decreases the electric field
Decreasing the charge on plates , E decreases
so option A is correct
2. The amount of solution that penetrated the protective layer is _____ proportional to the electric field
B. Inversely
from the given data the
as the electric field increased the penetration decreased so
answer is option B
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