Which of the following is the correct Ohm's law formula?
1 answer:
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Answer:
the correct one is 2. the equipotential lines must be closer together where the field has more intensity
Explanation:
The equipotential line concept is a line or surface where a test charge can move without doing work, therefore the potential in this line is constant and they are perpendicular to the electric field lines.
In this exercise we have a charge and a series of equipotential lines, if this is a point charge the lines are circles around the charge, where the potential is given by
V = k q / r
also the electric field and the electuary potential are related
E =
therefore the equipotential lines must be closer together where the field has more intensity
When checking the answers, the correct one is 2
Answer:
for -12db
for 3db
for 10db
for 0db
Explanation:
The decibel is a logaritmic value given by:
we use 10 for power values and 20 for other values such voltages or currents.
for -12db
for 3db
for 10db
for 0db