answersLogoWhite

0

To solve for resistors in parallel take the inverse of the sum of the inverses of all the resistors: 1/((1/r1) + (1/r2) + (1/r3)...)
[Google this. It is a lot easier to understand when the proper notation can be drawn.] SO: Rt = 1/((1/70) + (1/30)) = 21ohms

User Avatar

Wiki User

18y ago

What else can I help you with?

Continue Learning about Movies & Television

What is the equivalent resistance of the parallel circuit you have connected?

In principle, it is infinite. I have not connected a parallel circuit in ages.


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.


What happens to resistance when resistors are wired in parallel delta circuit?

What do you mean by a 'parallel delta' circuit -is there such a connection.


What is the power of a parallel circuit with a resistance of 1000 ohms and acurrent of 0.03 A?

The power will be the product of the square of the current and the resistance of the load. The fact that the circuit is a parallel circuit is irrelevant to this question.P = I2R = 0.032 x 1000 =0.9 W


What happens when an ammeter is connected in parallel with a circuit?

SMOKE!!! Yiii-haaaa! An ammeter is always as low a resistance as possible. That way, the current that you measure in a circuit using the meter will be the same as if the meter were not there. So putting an ammeter in parallel with a circuit means that you just short circuited the circuit you were intending to measure. Poof! There goes your ammeter!An ammeter has a very low internal resistance. So, if it is connected in parallel with a load, it will short-out that load. The resulting high current flowing through the ammeter may severely damage the meter (and possible harm the user), although most are fitted with fuses to protect them.

Related Questions

What is the equivalent resistance of the parallel circuit you have connected?

In principle, it is infinite. I have not connected a parallel circuit in ages.


If additional resistance is connected in parallel with a circuit the supply voltage will decrease?

If additional resistance is connected in parallel with a circuit the supply voltage will decrease?


Why ammeter cannot be connected in parallel?

An ammeter has low resistance (ideally no resistance) because it is placed in series with other circuit elements to detect how much current is flowing. If it is placed in parallel with a component it will short-circuit it. That is a bad thing.


What is a resistance network?

A resistance 'network' consists of a number of resistors connected together in series, or in parallel, or in series-parallel, or as a complex circuit. A 'complex' circuit is one that is not series, parallel, or series-parallel.


What happens to supply voltage if additional resistance is connected in parallel circuit?

The supply voltage in a parallel circuit remains the same regardless of the number of additional resistors connected. The voltage across each resistor in a parallel circuit is the same as the supply voltage. Adding more resistors in parallel will increase the total current drawn from the supply.


Is a voltmeter placed parallel to a circuit?

Depends. What did you want to measure? If it's voltage drop across the incandescent element, then you had better hook up your infinite resistance voltmeter in parallel with the lamp.


What is the difference between series and parallel circut?

If two or more circuit elements are connected in series, the current must pass through each of them in turn. If two or more circuit elements are connected in parallel, that means there is a "fork in the road". In this case, part of the current will pass through one element, and part, through another one.


What is the iffrence between a series circuit and parallel circuit?

Series circuit: elements are connected one after the other; the current (the electrons, or other charge carriers) has to pass through each of the elements in turn. Parallel circuit: elements are connected in such a way that part of the current will pass through one circuit element, part through the other.


What is resistive network?

A resistance 'network' consists of a number of resistors connected together in series, or in parallel, or in series-parallel, or as a complex circuit. A 'complex' circuit is one that is not series, parallel, or series-parallel.


What will happen to a buzzer connected to a circuit?

If it is connected in series with a circuit then it might raise the resistance too high and fail the system. Parallel connection is a circuit is probably the best bet you have.


How does the concept of parallel resistors connected to the same voltage source affect the overall resistance in a circuit?

When resistors are connected in parallel to the same voltage source, the overall resistance in the circuit decreases. This is because the current has multiple paths to flow through, reducing the total resistance that the current encounters.


How are voltmeters connected in a circuit: in series or parallel?

Voltmeters are connected in parallel in a circuit.