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What is the function of galvanometer in the bridge circuit?
In a bridge circuit, a galvanometer is used as a sensitive measuring instrument to detect small differences in potential between two points. It indicates whether the bridge is balanced or unbalanced by showing a current flow or deflection in its needle. When the bridge is balanced, the galvanometer reads zero, allowing for precise measurements of resistance or impedance in the circuit. This function is crucial in applications such as Wheatstone bridges for determining unknown resistances.
What happens if neutral of three phase four wire system is break?
For a balanced three-phase load, the neutral current is zero, so the loss of the neutral would have no effect.However, for an unbalanced load, the 'difference' between the line currents results in a neutral current.So, for an unbalanced load, if no neutral current can flow, then the load's neutral point will no longer remain symmetrical, and the line voltages will become unbalanced. If the unbalance is severe, then individual loads may be subject to over-voltages or under-voltages.
Which meter measures the potential difference in the circuit?
A voltmeter measures the potential difference between two points,whether or not the two points are in the same circuit.
What is the difference between a series circuit and as parallel circuit?
series circuit can only move on one patha parallel circuit has two more paths for the electric carve to follow
What is the difference between rated short circuit duration 3 seconds and 1 second circuit breaker?
The energy dissipated.
What is the difference between series and parralal circuit?
difference between series is one pathway through circuit,difference between parralal is more then one pathway through circuit.
How do you find neutral current in star connected circuit?
if it is balanced then neutral current is zero (!,e iR=iY=iB).AnswerFor both a balanced and an unbalanced load, the neutral current will be the phasor sum of the line currents.
What happens if neutral of three phase four wire system is break?
For a balanced three-phase load, the neutral current is zero, so the loss of the neutral would have no effect.However, for an unbalanced load, the 'difference' between the line currents results in a neutral current.So, for an unbalanced load, if no neutral current can flow, then the load's neutral point will no longer remain symmetrical, and the line voltages will become unbalanced. If the unbalance is severe, then individual loads may be subject to over-voltages or under-voltages.
What is the difference between mlln and data circuit?
a mlln circuit is a data circuit
How do you locate fault using whetstone bridge?
To locate a fault using a Wheatstone bridge, you first connect the bridge to the circuit where the fault is suspected. By adjusting the bridge until it is balanced (indicating zero voltage difference across the galvanometer), you can determine the resistance values in the circuit. If the bridge remains unbalanced, the difference in resistance can help identify the location of the fault by comparing with known resistance values. The point where the fault occurs can often be inferred from the changes in resistance readings throughout the circuit.
What is the difference between fuse and MCB?
what is the difference between miniature circuit breaker and fuse
What is difference between magnetic circuit and electric circuit?
magnetic circit has a magnet and electri circuit has electricity
What is the relationship between voltage and potential difference in an electrical circuit?
Voltage and potential difference are essentially the same thing in an electrical circuit. Voltage is the measure of potential difference between two points in a circuit. In other words, voltage is the force that pushes electric charges through a circuit, and potential difference is the measure of this force.
Does neutral wire carry voltage in a closed circuit?
The ground wire should carry no current at all, it is there in case of a short circuit to carry the (short circuit) current back to the breaker panel to trip the breaker. The neutral will carry the unbalanced load current between the 240 volt legs. e.g. L1 and N (neutral) 120 volts the load draws 8 amps. L2 and N (same neutral) 120 volts the load draws 12 amps. The difference between the two amperages is what the neutral will carry 12 - 8 = 4 amps.
What is the phase difference between the current through the resistor and inductor in an AC circuit?
The phase difference between the current through the resistor and inductor in an AC circuit is 90 degrees.
Why phase difference exists between voltage and current in ac circuit?
because of the reactances in the circuit
What is the relationship between potential difference and voltage in an electrical circuit?
Potential difference and voltage are essentially the same thing in an electrical circuit. Voltage is the measure of potential difference between two points in a circuit, indicating the amount of energy that can be transferred between those points. In other words, potential difference is the technical term for voltage in the context of electrical circuits.
