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What is it true that the combined resistance of a parallel branch circuit equals the value of one branch resistance divided by the number of branches?
Wiki User
∙ 12y ago
Only if the resistances of all the branches are the same.
RParallel = 1 / SummationI=1toN (1 / RI)
This simplifies to RI / N only if all RI's have the same value.
Wiki User
∙ 12y ago
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4 How do you determine current in a parallel DC circuit?
The current in each individual component of the parallel circuit is equal to (voltage across the combined group of parallel components) / (individual component's resistance). The total current is the sum of the individual currents. ============================== Another approach is to first calculate the combined effective resistance of the group of parallel components. -- take the reciprocal of each individual resistance -- add all the reciprocals -- the combined effective resistance is the reciprocal of the sum. Then, the total current through the parallel circuit is (voltage across the parallel circuit) / (combined effective resistance of the components).
Why is resistance less when resistors are join in parallel?
What do you mean? In a parallel circuit, the combined (or effective) resistance is less than any individual resistance.
How to calculate a parallel circuit with more than one load in its branches?
If a 'parallel' circuit has more than one load in its (not "it's"!) branches, then it is not a parallel circuit, but a series-parallel circuit! To resolve the circuit, you must first resolve the total resistance of the loads within each branch.
Why if one branch in a parallel circuit is shorted all others will short?
A current checks less resistance path to flow. When one of parallel branches is shorted, it becomes have less resistance and whole the current will flow through it, means current before parallel branches and current after parallel branches becomes same, and all branches become short.
Which circuit has different parts of the circuit on separate branches?
Any circuit that even has more than one branch is a parallel one.
4 How do you determine current in a parallel DC circuit?
The current in each individual component of the parallel circuit is equal to (voltage across the combined group of parallel components) / (individual component's resistance). The total current is the sum of the individual currents. ============================== Another approach is to first calculate the combined effective resistance of the group of parallel components. -- take the reciprocal of each individual resistance -- add all the reciprocals -- the combined effective resistance is the reciprocal of the sum. Then, the total current through the parallel circuit is (voltage across the parallel circuit) / (combined effective resistance of the components).
Why is resistance less when resistors are join in parallel?
What do you mean? In a parallel circuit, the combined (or effective) resistance is less than any individual resistance.
How to calculate a parallel circuit with more than one load in its branches?
If a 'parallel' circuit has more than one load in its (not "it's"!) branches, then it is not a parallel circuit, but a series-parallel circuit! To resolve the circuit, you must first resolve the total resistance of the loads within each branch.
A type of circuit in which current can branch off?
In a parallel circuit, current is divided between each of the 'branches', according to their resistance.
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 is the three laws of parallel circuit?
The potential difference remains the same over the components in parallel and the current splits up proportianally to the components conductances. The components conductances add up to give the combined conductance of the parallel circuit. Conductance is 1 / resistance
Why if one branch in a parallel circuit is shorted all others will short?
A current checks less resistance path to flow. When one of parallel branches is shorted, it becomes have less resistance and whole the current will flow through it, means current before parallel branches and current after parallel branches becomes same, and all branches become short.
What is a circuit with two or more branches for current to flow called?
Parallel circuit
A circuit that has two or more branches for electrons to follow is a?
parallel circuit.
Is the sum of the resistance in a parallel circuit always excessds the total resistance in a circuit?
Not sure what you mean. The equivalent (total) resistance in a parallel circuit is less than any individual resistance.
Why does the same voltage run through all the branches of a parallel circuit irrelevant of the different resistance appliances on those branches?
The same voltage is present but does not run. It is the current that could be described as "runniing" through the different branches. Just by definition, parallel circuits necessarily have the same voltage. It is architecture of the circuit.
Which circuit has different parts of the circuit on separate branches?
Any circuit that even has more than one branch is a parallel one.
