0
What else can I help you with?
In a series circuit How does the voltage from a battery compare to the voltages on each load?
The sum of the currents through the branches of a simple parallel circuit is the current that flows through the voltage source.Kirchoff's current law: The signed sum of the currents in a series circuit is zero. The sum of the currents in the branches represents one effective path, which is in series with the voltage source, so the two effective currents must be the same.
Is the open circuit voltage of a solar cell measured under non-illuminating condition?
Well, you should really measure the open-circuit voltage and the short circuit current both under dark and light conditions and then compare them to fully characterize a solar cell. Measuring the open-circuit voltage means measuring the voltage across the cell when no current is flowing (i.e., with a LARGE resistance as a load on the cell). Measuring the short-circuit current means measuring the current when the voltage across the circuit is essentially zero (i.e., with a VERY SMALL resistance as a load on the cell--thus, "short-circuit" current).
What should you read between the commutator segments at a static condition Ohms OR short circuit?
In a static condition, the readings between commutator segments should ideally show zero volts or very low resistance, indicating that there is no significant current flowing due to an open circuit or a short circuit. If you observe a voltage reading, it could suggest a potential issue, such as a short circuit between segments. Conversely, if the resistance is too high or infinite, it might indicate an open circuit. Always ensure to compare readings against the manufacturer's specifications for accurate diagnosis.
What are the advantages of kelvin double bridge over wheatstone bridge?
1) a bridge based on the principle of Wheat stone's bridge that is used to compare two nearly equal resistances and to determine values of low resistances and the specific resistance of a wire. It differs from a meter bridge because additional resistances of similar magnitudes are included at either end of the meter wire.
How do you test a dual capacitor?
Depending on the value, it varies. Using a multimeter set for Kilohms resistance, check that it appears open circuit. This may be hard to determine, due to other components in circuit. It should NOT show zero resistance. Electrolytic capacitors above 1 microFarad will show some storage of charge. Using the meter with the probes one way, there should be a percepible rise of resistance. Reverve the leads and you should get an intial negative value followed by a slow rise in resistance. If there is no perceptible rise, it could be open circuit. If it shows Zero, it will indicate a dead short.
How does the loading effect of an ammeter in a low resistance circuit compare to the loading effect in a high resistance circuit?
The voltmeter has an internal resistance, which should be as high as possible. As this resistance draws current from the circuit under test, it will affect circuit operation. This is more pronounced in a high impedance circuit because the current drawn flows through higher resistances.
How do series circuits and parallel circuits compare?
In series circuits, the current flows through each component sequentially, so if one component fails, the entire circuit will fail. In parallel circuits, each component has its own separate branch, so if one component fails, the others will continue to operate. Additionally, the total resistance in a series circuit is the sum of individual resistances, while in a parallel circuit, the total resistance is less than the smallest individual resistance.
How does the loading effect of a voltmeter in a high-rsistance circuit compare to the loading effect in a low-resistance circult?
The voltmeter has an internal resistance, which should be as high as possible. As this resistance draws current from the circuit under test, it will affect circuit operation. This is more pronounced in a high impedance circuit because the current drawn flows through higher resistances.
In a series circuit How does the voltage from a battery compare to the voltages on each load?
The sum of the currents through the branches of a simple parallel circuit is the current that flows through the voltage source.Kirchoff's current law: The signed sum of the currents in a series circuit is zero. The sum of the currents in the branches represents one effective path, which is in series with the voltage source, so the two effective currents must be the same.
Suppose in a circuit with two bulbsthe resistance of bulb 1 is greater than that of bulb 2how will the voltage across the two bulbs compare?
That depends on whether the bulbs are wired in series or in parallel.
Is the open circuit voltage of a solar cell measured under non-illuminating condition?
Well, you should really measure the open-circuit voltage and the short circuit current both under dark and light conditions and then compare them to fully characterize a solar cell. Measuring the open-circuit voltage means measuring the voltage across the cell when no current is flowing (i.e., with a LARGE resistance as a load on the cell). Measuring the short-circuit current means measuring the current when the voltage across the circuit is essentially zero (i.e., with a VERY SMALL resistance as a load on the cell--thus, "short-circuit" current).
Compare the sizes of forward force and air resistance while a car is moving at 30mph?
when a car is speeding up how does the forward force and air resistance compare
Compare the accuracy of the wheatstone and kelvin double bridge?
The Kelvin double bridge is more accurate than the Wheatstone bridge because it eliminates errors associated with lead resistance and contact resistance in the circuit. The Kelvin bridge uses four terminals to independently measure and compensate for these errors, resulting in more precise resistance measurements.
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.
What are the advantages of kelvin double bridge over wheatstone bridge?
1) a bridge based on the principle of Wheat stone's bridge that is used to compare two nearly equal resistances and to determine values of low resistances and the specific resistance of a wire. It differs from a meter bridge because additional resistances of similar magnitudes are included at either end of the meter wire.
Why armature resistance is less than 1 Ohm?
why armature resistance is very low as compare to field resistance in dc motor
How do you obtain instrument readings and compare them with circuit perameters?
spoooooooooooooooooooooooooooooooon
