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What else can I help you with?
Why ac voltage is always applied across capacitor?
It's not.
What is a maximum voltage across a resistor?
The voltage across the resistor is whatever voltage is applied. The only maximum here would be a voltage that would damage the resistor. If you think this might happen, you'll have to look up such a voltage from the data sheets.
What is the potential difference across a single 4 Ohm resistor if the source voltage is 230v?
the potential difference across the single 4ohm resistor is 230volts.
Is voltage established through a resistor or across a resistor?
Current = charge (electrons) flowing through a resistor.Voltage = energy lost across a resistor.Power = energy lost across a resistor per second.So yes you are correct. Current is established through a component, while voltage and power are established across a component.Answer'Voltage' is a synonym for 'potential difference'. As the name implies, voltage describes the difference in potential between (or 'across') two different points. So voltage is applied ACROSS a resistor.Further to the original answer. voltage is NOT equivalent to 'the energy lost across a resistor', and power is NOT 'established across a resistor' (power is simply a 'rate', nothing more)!
How should a voltmeter be connected to measure voltage of a component?
Since voltage is electrical potential difference, to measure the voltage across a component, you place the voltmeter across, or in parallel with, the component.
How can you obtain three time voltage across potential coil of wattmeter?
The voltage applied to the voltage coil of a wattmeter must not exceed the voltage rating of that coil.
How voltage is measured in potential transformer?
By connecting a voltmeter across the secondary terminals of the voltage/potential transformer. The transformer acts to reduce the voltage applied to its primary winding, while electrically-isolating the primary (usually high-voltage) circuit from the voltmeter.
Is there a relationship between the sums and the electrical potential across the source?
Yes, there is a relationship between the sums of electrical potential differences in a circuit and the electrical potential across the source. The sum of the potential differences around a closed loop in a circuit equals zero, known as Kirchhoff's Voltage Law. This means that the sum of the potential drops across circuit elements is equal to the potential rise across the power source.
Does voltage flow across or through a resistor?
No. If a voltage is applied across a resistor, a current flows through it.
What is the potential voltage across the circuit components in a series circuit?
In a series circuit, the potential voltage across the circuit components adds up to the total voltage of the circuit.
Ac voltage applied across a load resistance produce alternating current?
The reason an AC voltage applied across a load resistance produces alternating current is because when you have AC voltage you have to have AC current. If DC voltage is applied, DC current is produced.
When does current flow through a conductor?
When a voltage is applied across it.
Why ac voltage is always applied across capacitor?
It's not.
Circuit diagram and working of potentiometer?
See the related link for a circuit diagram. The diagram pretty well explains how it works also. A potential is applied across the potentiometer. A movable contact moves across the voltage developed across the fixed portion and picks off the desired voltage.
What voltage is being applied across the secondary circuit?
A voltage is never applied to the secondary It can be used as a source but hen it becomes the primary by definition
Does the voltage that runs through different appliances vary according to the resistance of appliances?
Voltage does not 'run through' anything! Voltage is another word for potential difference which exists across a circuit's load. You can think of voltage as being equivalent to 'pressure' -pressure does not 'run through' anything, either, it is applied 'across' two points in a hydraulic or pneumatic system.So, if the appliances are connected in parallel (usually the case), then the potential difference across each appliance will be the same.
How is voltage determined on a light bulb?
Voltage on a light bulb is determined by the amount of electrical potential difference applied across its terminals. The higher the voltage, the brighter the bulb will shine. Light bulbs are typically rated to operate at a specific voltage, such as 120V for standard household bulbs.
