For the second question you’re solving for resistance. resistance= voltage/ current. 120/0.5= 240. the answer is 240 ohms for the third question you would do 2*4 since it’s asking for voltage, the answer is 8 volts :)
<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:
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<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.
Decide which components you wish to assess yourself. There is no set order in which you do this. you could, for an example assess one or two elements and skip the rest.