3. Explain the mathematical relationship and give the units for the equation V = I•R. (2 points)
7. If the current in a circuit is .75 A and the voltage is 100 V, what is the power? Show the equation you used to solve this problem and make sure the correct units are used. (2 points)
13. As an electrician, you are asked to build a circuit in a house in order to run lights, TV, refrigerator, etc. What type of circuit would best be used for a home such as this? Explain. (2 points)
I'm super behind on science and these 3 questions are the ones that are keeping me from continuing on other lessons! I would greatly appreciate your help!
7. If the current in a circuit is .75 A and the voltage is 100 V, what is the power? Show the equation you used to solve this problem and make sure the correct units are used. (2 points)
13. As an electrician, you are asked to build a circuit in a house in order to run lights, TV, refrigerator, etc. What type of circuit would best be used for a home such as this? Explain. (2 points)
I'm super behind on science and these 3 questions are the ones that are keeping me from continuing on other lessons! I would greatly appreciate your help!
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3) If
V = IR
this is one way to state Ohms's law. It says that for a conductor, at constant temperature, the current through it is proportional to the voltage voltage across it. The constant of proportionality is, in this case, the resistance. So, if you plot a graph of voltage against current, you will get a straight line the slope of which is the resistance.
7) Lets apply Ohm's law here. So
V = 100 V; I = 0.75 Amps.
Power = Voltage (V) * current (A) (Watts)
Power = 100 * 0.75 = 75 Watts
13) This one I'm not sure of, but I THINK something called a ring-main circuit would fit the bill.
V = IR
this is one way to state Ohms's law. It says that for a conductor, at constant temperature, the current through it is proportional to the voltage voltage across it. The constant of proportionality is, in this case, the resistance. So, if you plot a graph of voltage against current, you will get a straight line the slope of which is the resistance.
7) Lets apply Ohm's law here. So
V = 100 V; I = 0.75 Amps.
Power = Voltage (V) * current (A) (Watts)
Power = 100 * 0.75 = 75 Watts
13) This one I'm not sure of, but I THINK something called a ring-main circuit would fit the bill.
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3: Ohm's Law relationship, V=IR. Where V = Voltage or Potential Difference (PD); I = Current (Amps)
and, R = Resistance (Ohms).
7: 0.75 A x 100V = 75 Watts of power.
13; A ring-main, Parallel circuit will be the layout required. Each appliance will have separate breakers and receive the same Voltage. If any one appliance overloads and throws its breaker, the others will remain available.
and, R = Resistance (Ohms).
7: 0.75 A x 100V = 75 Watts of power.
13; A ring-main, Parallel circuit will be the layout required. Each appliance will have separate breakers and receive the same Voltage. If any one appliance overloads and throws its breaker, the others will remain available.
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3 V=Ir
potential difference across a conductor is directly proportional to current applied
v=potential diff (volt)(unit)
i=current (ampere)
r=resistance (ohm)
7 Power=v.i
= 0.75x100
=75 watt
13 a parallel circuit is used
because
* potential diff across each device remains same
* if one device fails others still operate
potential difference across a conductor is directly proportional to current applied
v=potential diff (volt)(unit)
i=current (ampere)
r=resistance (ohm)
7 Power=v.i
= 0.75x100
=75 watt
13 a parallel circuit is used
because
* potential diff across each device remains same
* if one device fails others still operate
-
3 not sure :(
#7 v=100 , I=.75a R=? so plug it in 100/.75 = 133.34 power
#13 parallel circuit it can use one power sorce and spread to othe places in the house
good luck
Hope this helped
-Z man
#7 v=100 , I=.75a R=? so plug it in 100/.75 = 133.34 power
#13 parallel circuit it can use one power sorce and spread to othe places in the house
good luck
Hope this helped
-Z man
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Knock yourself out. Ohm's Law:
.
http://www.sengpielaudio.com/calculator-…
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http://www.sengpielaudio.com/calculator-…
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Do your own Homework you stupid *****. i hate people like you get off the internet and do your own work.