1) The equivalent resistance of two resistors in parallel is given by:

so in our problem we have

and the equivalent resistance is

2) If we have a battery of 12 V connected to the circuit, the current in the circuit will be given by Ohm's law, therefore:
Answer: B
Explanation:
Biosphere breaks down rock of the geosphere (plant roots), but when it comes to soil, minerals of the geosphere feed the plants. Biosphere and atmosphere interact through animal and plant respiration of oxygen and carbon dioxide. Geosphere creates, destroys and keeps various biosphere places safe.
Answer:
814.87 kPa
Explanation:
See the attached picture for detailed answer.
Answer:
X, Y, Z, W
Explanation:
W has a current of 0 so it has no magnetic field.
X has the most loops (besides W) and the most current so it is the strongest.
Y and Z are the same except Y has more loops so it is stronger than Z.
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