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What is the relationship among voltage current and resistance in a circuit?
Voltage = (current) x (resistance) Current = (voltage)/(resistance) Resistance = (voltage)/(current)
Why current leads in capaciter?
Capacitors resist a change in voltage. It takes current to effect a voltage change, resulting in the current "leading" the voltage. Similarly, inductors resist a change in current. It takes voltage to effect a current change, resulting in the current "lagging" the voltage.
Is DC voltage and average voltage same?
no, dc volatage is a type of current direct current, ac is alternating current, average voltage could be any type of voltage ac or dc that maintains a constant rangeAnswerNo. A DC voltage is exactly equivalent to an AC rms-voltage. So, for example, 100 V (DC) is exactly equivalent to 100 V (AC rms). The average value of an AC waveform is zero.
When voltage increases what happens to current?
Ohm's law states that "The current is directly proportional to the applied EMF (voltage) and inversely proportional to the resistance in the circuit."AnswerIf the voltage across a circuit increases, then the current will increase too. If the ratio of voltage to current is constant for variations in voltage, then the circuit is described as being 'linear' and is obeying Ohm's Law; if the ratio of voltage to current changes (as it would, for example, with tungsten) for variations in voltage, then the circuit is described as being 'non-linear', and is not obeying Ohm's Law. This is because Ohm's Law is not universal, and only applies to certain materials; in fact, most materials and electronic devices do not obey Ohm's Law.
AC circuit that contains both resistance and inductance will have a.The current and voltage in phase b.current will lead the voltage c.current will lag the voltage d.voltage will lag the current?
a. the current and voltage in phase
What are the dependent and independent variables in relationship between resistance and current at constant voltage?
dependent variable is current and independent variable is resisitance
What are independent and dependent sources?
An independent source is a source that produce constant currents and voltage. Dependent sources are voltage sources that depend on a voltage somewhere else in the network.
What is the difference between independent and dependent source?
Independent SourcesIndependent sources produce current/voltage at a particular rate that is dependent only on time. These sources may output a constant current/voltage, or they may output current/voltage that varies with time.Dependent SourcesDependent sources are current or voltage sources whose output value is based on time or another value from the circuit. A dependent source may be based on the voltage over a resistor for example, or even the current flowing through a given wire. The following sources are possible:Current-controlled current sourceCurrent-controlled voltage sourceVoltage-controlled current sourceVoltage-controlled voltage sourceDependent sources are useful for modelling transistors or vacuum tubes.
What is different between dependent and independent dc source?
A dependent DC source is a circuit element whose output voltage or current depends on another voltage or current in the circuit, while an independent DC source provides a constant voltage or current regardless of other circuit elements. Independent sources can be either voltage sources or current sources, and they maintain their specified output without any influence from the circuit conditions. In contrast, dependent sources are typically used in controlled circuits and are represented by a specific relationship to another variable in the system.
Is it possible to use source transformation to dependent voltage source?
Yes.Source transformation in dependent voltage source can be solved the same like independent voltage source
Is a dependent current source unilateral or bilateral?
A dependent current source is a bilateral element. This means that it behaves the same way regardless of the direction of current flow. Its output depends on a voltage or current elsewhere in the circuit, but the relationship is consistent in either direction. In contrast, unilateral elements, like independent current sources, have direction-dependent behavior.
What is the independent dependent and controlled variables in making a circuit?
The independent variable is the component you change, such as the voltage or resistor value. The dependent variable is the component that changes in response to the independent variable, like the current or brightness of a light. The controlled variables are factors you keep constant, such as the type of wires or battery used.
Why an independent voltage source is made deactivated by shortening and an independent current source is made deactivated by open circuiting?
Short-circuiting an independent voltage source effectively sets its voltage to zero, deactivating it. Since current in a short circuit is maximized, this creates a situation where the voltage source cannot maintain its specified voltage. Open circuiting an independent current source prevents the flow of current, effectively deactivating it because without a complete path for current to flow, the current source cannot maintain its specified current output.
What is the voltage drop across a resistor of 300 kilo ohm?
What is the amount of current flowing through the resistor? Voltage drop is dependent on the current. Ohm x Amps = Voltage drop
What size wire for 250 v AC?
Wire size is not dependent on voltage - it is dependent on current. Please restate your question and provide the expected branch current.
Is high-voltage syndrome an example of static or current electricity?
it is an example of current electricity
What is the maximum current that can be drawn from a voltage source?
The maximum current that can be drawn from a voltage source is dependent on the impedance of that source, the impedance of the connections to the source, and the energy available from that source.
