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You add up the currents in each branch. The current in each branch is just
(voltage acrossd the parallel circuit)/(resistance of that branch) .
==================================== If you'd rather do it the more elegant way, then . . .
-- Write down the reciprocal of the resistance of each branch.
-- Add up the reciprocals.
-- Take the reciprocal of the sum. The number you have now is the
'effective' resistance of the parallel circuit ... the single resistance
that it looks like electrically.
-- The total current through the parallel circuit is
(voltage acrossd the parallel circuit)/(effective resistace of the parallel circuit) .
What else can I help you with?
How would you know which resistors are in parallel with each other?
Resistors are in parallel when they are connected to the same two nodes, creating multiple paths for current to flow. You can identify them by checking if each resistor's terminals are connected to the same points in the circuit. Additionally, in a parallel configuration, the voltage across each resistor is the same, while the total current is the sum of the currents through the individual resistors. A quick visual inspection or using a multimeter to measure voltage can help confirm their arrangement.
If one of three lamps blows out when connected in parallel what happens to the current in the other two?
If three lamps are connected in parallel and one blows out, the current in the other two does not change. This assumes that the net change in total current does not cause the power source to change voltage.
What is the different resistance between p AND q?
The difference in resistance between two points, p and q, typically refers to the electrical resistance encountered when current flows between these points in a circuit. This resistance can be affected by factors such as the material properties, length, cross-sectional area of the conductor, and temperature. If p and q are part of a circuit, the resistance can be calculated using Ohm's Law (R = V/I), where R is resistance, V is voltage, and I is current. The total resistance between p and q may also depend on how other resistive components are arranged in the circuit (series or parallel).
How super position theorem solved?
The Superposition Theorem is used in linear circuit analysis to determine the contribution of each independent source to the overall circuit response. To apply it, you disable all but one independent source at a time: replace voltage sources with short circuits and current sources with open circuits. You then analyze the circuit to find the response (voltage or current) due to the active source. Finally, you sum all individual contributions to get the total response in the circuit.
What are the uses of equations?
They are very important in many areas such as maths and physics. They are used to work out unknown's. For example in physics if you know the current through a circuit, and the total resistance, and you need to find out the voltage, you can use the equation: Voltage= current * resistance, to work out.
How is a total current in a parallel circuit worked out?
sum the individual branch currents
What is the hypothesis for parallel circuits?
In a parallel circuit, the hypothesis is that when components are connected in parallel, the total current flowing into the junction equals the total current flowing out. Essentially, the hypothesis states that the total current remains constant regardless of the number of parallel paths.
What happens to current in a parallel circuit?
in a parallel circuit, current get divided among the parallel branches in a manner so that the product of current and the resistance of each branch becomes same. The sum of the current in each branch is equal to the total current of the circuit.
What happens to the current in a parallel circuit when more bulbs are added?
When more bulbs are added to a parallel circuit, the total current in the circuit increases because each bulb provides an additional path for current to flow. This is because in a parallel circuit, the current is divided amongst the branches, so adding more branches (bulbs) will increase the total current.
what happens to current in a circuit?
in a parallel circuit, current get divided among the parallel branches in a manner so that the product of current and the resistance of each branch becomes same. The sum of the current in each branch is equal to the total current of the circuit.
What is the current called when it flows from and back to the power supply in a parallel circuit?
The current that flows from and back to the power supply in a parallel circuit is called branch current. Each branch in a parallel circuit has its own current flow that combines to form the total current drawn from the power supply.
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.
When you short out a resistor in a parallel circuit why does the current lower?
The total resistance of a set of resistors in parallel is found by adding up the reciprocals of the resistance values, and then taking the reciprocal of the total. By removing a resistor the total current will lower. If you short out the parallel circuit as suggested it will take out the fuse that should be protecting the circuit.AnswerShorting-out a resistor in a parallel circuit, will act to short out the entire circuit, therefore, significantly increasing, not lowering, the current! And, as the previous answer indicates, this short-circuit current will operate any protective devices, such as a fuse.In a parallel circuit current does not lower but it will be increase if shorting-out one resistor in the two resistor parallel circuit, the circuit will become very low resistive and the larger current will flow through the short path.
Is the current in one branch of a parallel circuit more than less than or equal to the total current?
its less then the total current
In a parallel ac circuit is the current additive?
Yes In parallel circuit , current entering into the circuit will be divided intodifferent paths ( resistances) . Amount of current flow depends upon the magnitude of resistance applied in the circuit. Total current after passing through the circuit will be the sum of all current through each resistance.
Why parallel circuit is known as current magnification though it has minimum current at the time of resonance?
In a parallel circuit, each branch has its own current path, allowing the total current to be the sum of the currents in each branch. This is why it is known as current magnification. However, at resonance, the impedance in the circuit is at its minimum, causing the total current in the circuit to decrease. This does not change the fact that individual branches can still have higher currents than in a series circuit due to the unique current paths in a parallel arrangement.
What happens when more branches are added to a parallel circuit?
Adding more branches to a parallel circuit decreases the overall resistance of the circuit. This leads to an increase in the total current flowing through the circuit as each branch provides an additional pathway for the current to flow. This results in a decrease in the total resistance and an increase in the overall current of the circuit.
