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How do you calculate the amperage draw on the system.
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mtech
User
Jul 10, 2008, 7:01 PM
Post #1 of 2
(1638 views)
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How do you calculate the amperage draw on the system.
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 Given the values for each resistor in the illustration above, calculate the amperage draw on the system.
Resistor 1 = 2
Resistor 2 = 3
Resistor 3 = 2
Source voltage = 13
Total amperage draw = ?
Select the BEST possible answer A. 4.24 Amps B. 2.8 Amps C. 1.71 Amps D. 3.75 Amps no i talk to can help me with this anyone have any input or the formula to get the answer????????????????????????????????? so lost
(This post was edited by mtech on Jul 10, 2008, 7:57 PM)
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way2old
Veteran
/ Moderator
Jul 11, 2008, 5:37 AM
Post #2 of 2
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Re: How do you calculate the amperage draw on the system.
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Basic Electricity E = I R Voltage = Current x Resistance E Voltage applied to the circuit, in volts (V)
I Current flowing in the circuit, in amperes (A)
R Resistance in the circuit, in ohms
Electrical Circuits 10 of 31 
APPLICATIONS OF OHM'S LAW
As an application of Ohm's law, any voltage V, current I or resistance R in an electrical circuit can be determined without actually measuring it if the two others values are known.
This law can be used to determine the amount of current I flowing in the circuit when voltage V is applied to resistance R. As stated previously, Ohm's law is: 
Current = Voltage / Resistance.
In the following circuit, assume that resistance R is 2 and voltage V that is applied to it is 12 V. Then, current I flowing in the circuit can be determined as follows: 
Being way2old is why I need help from younger minds
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