The magnetic field strength in a coil is directly proportional to the number of turns, or loops, in the coil. Therefore, when there are four loops instead of one, the magnetic field strength has increased four times, making it harder to push the magnet in.
<span>Now that we have all the values we need properly identified, simply calculate the equivalent total resistance of the circuit and the intensity of the total electric current using the Ohm's Law:
</span>
<span>Like this: </span>
Answer: <span>The intensity of the total electric current </span>
P.S:. Since the association is in series, the current of 0.07A is the same for all resistors.
The exosphere is the layer of the atmosphere "Where gas molecules can be exchanged between Earth's atmosphere and outer space." Thus, the answer would be C.