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When two lengths of the same uniform wire are connected together the effective resistance is the sum of the separate resistances is this correct?
Wiki User
∙ 12y ago
Yes. Resistances in series add up.
RSERIES = Summation1toN RN
Wiki User
∙ 12y ago
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How would it be connected so that the effectiveness of the resistance is the sum of the separate resistances?
In series.
When two lengths of the same uniform wire are connected..................the effective resistance is the sum of the separate resistances.Full in the space?
in series
Why separate resistancesvariable resistances or resistance materials are used in electric circuits neglecting the resistance of the connecting wirescopper wiresin calculations?
The resistance of the connecting wires in most cases would be negligible compared to that of any component listed as a resistor and again, in most cases, would have little effect on calculations.
What are the laws governing parallel circuit?
In a parallel circuit, the total voltage across each branch is the same, and the total current is the sum of the currents flowing through each branch. The total resistance in a parallel circuit decreases as more branches are added. Ohm's Law can be applied to calculate the voltage, current, or resistance in each branch of a parallel circuit.
Is Long Island connected to Manhattan?
No, they are separate islands, but they are connected by several bridges and tunnels.
Are oceans connected or separate?
They r connected, but where 2 oceans meet there is a strong current
Suggest other better methods of measuring resistance?
There are several methods for measuring resistance, each suited to different situations and levels of precision. Here are the most common methods: Ohmmeter: This is the most common method for measuring resistance. An ohmmeter is a device that directly measures resistance. It typically consists of a voltage source, an ammeter, and a variable resistor. When connected to a circuit, it passes a known current through the component whose resistance is being measured and then measures the voltage drop across it. The resistance is calculated using Ohm's Law (R = V/I), where R is resistance, V is voltage, and I is current. Multimeter: A multimeter combines several measurement functions into one device, including voltage, current, and resistance. Most modern multimeters have a setting for measuring resistance (Ohms), and they function similarly to standalone ohmmeters. Bridge Circuits: Bridge circuits, such as Wheatstone bridge, are used for precise resistance measurements. They compare the unknown resistance with a known resistance in a balanced bridge circuit. The bridge is adjusted until there is no current flow through the detector, indicating that the bridge is balanced. Then, the resistance of the unknown component can be calculated based on the known resistances and the bridge configuration. Kelvin Bridge: A Kelvin bridge is a modification of the Wheatstone bridge and is used for accurate measurement of low resistances. It eliminates the resistance of the connecting leads by using four terminals instead of two. Meters and Galvanometers: Galvanometers are sensitive instruments that measure small currents. By applying a known voltage across the unknown resistance and measuring the resulting current using a galvanometer, the resistance can be calculated. Digital Methods: Modern digital techniques use microcontrollers or specialized integrated circuits to measure resistance. These methods often offer high accuracy and precision. Resistance Temperature Detectors (RTDs): RTDs are sensors whose resistance changes with temperature. By measuring their resistance and knowing their temperature coefficient, you can indirectly measure temperature. Four-Wire Measurement: Also known as Kelvin sensing, this technique is commonly used to measure very low resistances accurately. It eliminates errors caused by the resistance of the connecting wires by using separate pairs of leads for current and voltage sensing. Each method has its advantages and is suited to different applications, ranging from simple household measurements to precise laboratory measurements.
How do you separate two connected objects?
you oull them apart
Is lost and flash forward connected?
No. They are separate shows.
What is the equivalent resistance if six 18 kOhm resistors are connected in 1. series 2. parallel as was asked by Mackey90 on 8 December 2008?
6 separate 18kOhm resistors wired in series make a total resistance of:18k+18k+18k+18k+18k+18k which is 108 kOhm.6 separate 18kOhm resistors wired in parallel make a total resistance of:1/[(1/18k) + (1/18k) + (1/18k) + (1/18k) + (1/18k) + (1/18k)] which is 3 kOhm.
What is the advantage of four probe method over other conventional methods?
I assume you are referring to methods of measuring small value resistances, as in locating short circuits on a PC card. Two probe is the method used by standard ohm meters. This works OK for most resistance values, as the resistance of the leads & probes is much lower than the resistance being measured. But when the resistance being measured gets very tiny (e.g. a few milliohms) it fails as the resistance of the leads & probe are of the same order of magnitude and are in series with it. Four probe solves this problem by using two probes connected to a current source to drive the resistance and a separate two probes connected to a precision voltmeter calibrated in milliohms. The voltage drop in the leads due to the test current does not get measured by the calibrated voltmeter, as it does in two probe method. There is no voltage drop in the measurement leads as the voltmeter is high impedance.
What is a period of time?
Separate division of time connected by a common theme!
