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A circuit has two resistors of equal value in series The voltage and current in the circuit are 20 volts and 2 amps respectively What is the value of EACH resistor?
Ohms law states
Voltage = Current X Resistance, or as commonly represented, E=IR.
In this case plugging in the values (using basic algebra)
20 = 2R
or
10 = R
or as commonly stated
R=10.
So that lets us know the TOTAL resistance of the circuit.
Now, knowing that series resistance is "added", we can calculate the individual circuit resistance.
In a series circuit total resistance can be represented by 'R', and the individual resistance of each resistor can be represented by "R1", "R2", R3", and so forth. In a series circuit resistances can be calculated using the formula: R=R1+R2+R3...
Since we only have the two resistors the formula would be:
R=R1+R2
Knowing that the resistors are equal in value we can assume:
R=R1+R1
OR
R=2(R1)
OR
2(R1) = R
OR
R1 = 1/2R
Given that R is 10 (from above)
R1=1/2 * 10
or
R1 = 5
Each resistor equals 5 ohms
What else can I help you with?
What is true of a series circuit that has two resistors?
Which is true of a series circuit that has two resistors?A.The resistors are on different branches of the circuit.B.Neither resistor has current flowing through it.C.One resistor has no voltage across it.D.Both resistors have current flowing through them.
How do resistors affect a circuit?
It reduces the current. As the current travels through the resitors it has some current that is left in the resistor. And
You are just asking that let us assume you have connected 2 or 3 resistors in a circuit and the current flowing through the circuit and from all the resistors will be same but how?
If the resistors are connected in series, the total resistance will be the sum of the resistances of each resistor, and the current flow will be the same thru all of them. if the resistors are connected in parallel, then the current thru each resistor would depend on the resistance of that resistor, the total resistance would be the inverse of the sum of the inverses of the resistance of each resistor. Total current would depend on the voltage and the total resistance
Choose true or falseIf all the resistors in a parallel sub-circuit have the same value the total current can be found by multiplying the current by the number of resistors?
False. The total current in a parallel sub-circuit where all resistors have the same value cannot be found by multiplying the current by the number of resistors. In a parallel circuit, the total current depends on the individual resistor values and how they affect the overall resistance of the circuit.
How do resistors drop voltage in an electrical circuit?
Resistors drop voltage in an electrical circuit by impeding the flow of current, causing a voltage drop across the resistor according to Ohm's Law (V I R). This results in a decrease in voltage across the resistor, allowing for control and regulation of the electrical current in the circuit.
What is the relationship between resistors connected in series and the flow of current through them?
When resistors are connected in series, the flow of current through them is the same. This means that the current passing through each resistor is equal, as it has to pass through each resistor in the series circuit.
How do resistors reduce voltage in an electrical circuit?
Resistors reduce voltage in an electrical circuit by impeding the flow of electric current, which causes a drop in voltage across the resistor. This drop in voltage is proportional to the amount of resistance in the circuit.
What happens in a series circuit if one of the resistors is replaced with a resistor having a lower resistance value?
In a series circuit, if one resistor is replaced with a resistor of lower resistance, the total resistance in the circuit decreases. This leads to an increase in the overall current flowing through the circuit.
How do resistors work in an electrical circuit?
Resistors work in an electrical circuit by limiting the flow of electric current. They are designed to resist the flow of electricity, which helps control the amount of current passing through a circuit. This resistance is measured in ohms and can be adjusted by changing the value of the resistor.
What is the meaning of resistor?
Resistors are one of the three basic electronic components. They restrict the flow of current in an electrical circuit. Fixed resistors have a fixed value of resistance, and are used in almost every electronic circuit for lots of different reasons.
How does the area of series resistors affect the overall resistance in a circuit?
The total resistance in a circuit with series resistors is the sum of the individual resistances. When more resistors are added in series, the total resistance increases because the current has to pass through each resistor, making it harder for the current to flow.
What does a resistor do to the flow of energy?
It depends on what sort of circuit the resistor(s) is in. The resistor(s) can lower either EMT (Voltage) or Current (Amperage) Sometime resistors are used to create an EMT differential whenever current is flowing.
