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A voltage will cause electrons or other charge carriers to flow (if there is a path through which they can flow). In other words, it will cause a current.
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List the units for measuring current and voltage?
The unit of voltage is the "volt". The unit of current, sometimes called "amperage", is the "ampere".
What is unilateral element?
When an element polarity of voltage or current source changes, the magnitude of the corresponding current or voltage changes is called unilateral element. Eg: Diode Even Diode connected back to back in parallel act as a Bilateral.
When the voltage applied to the rheostat is doubled then tripled what happens to the rheostat?
The heat released by the rheostat with double the voltage will quadruple. When voltage is tripled, the power loss is 32 or 9 times that before. A rheostat is a kind of variable resistor. Since E = IR (voltage equals current times resistance), then I = E/R (current equals voltage divided by resistance). If the voltage is doubled and the resistance stays the same, then--you can see by the formula--the current would double. Now, power dissipated by a resistor is related to the product of the current and voltage (P = IE). But since a doubling of voltage produces also a doubling of current, double the current results in 2X2=4 times the power (heat) loss.
What happens to voltage in a series circuit?
Total voltage = the source. The voltage around the circuit is divided proportionally by each of the resistances in line. The current is = the source voltage divided by the sum of all the resistance.
What does power line carry voltage or current?
It carries a current at the set voltage of the line. Current is the actual electricity that flows along the line and is used up in your electric appliances whereas voltage is the difference between the energy being generated at the station and ground.AnswerIt carries both voltage and current. Voltage exists between each line conductor, and current flows through each line conductor.
How does voltage cause current to do work?
A voltage will cause electrons or other charge carriers to flow (if there is a path through which they can flow). In other words, it will cause a current.
How does voltage cause current to work?
Voltage provides the "pressure" to push current "flow" through the circuit resistance.
What cause a series circuit to work and not work?
A series circuit will work if there is a closed path through which the current can pass, and a voltage source. Otherwise it won't.
What forces cause current to move?
Voltage
What is applied to a conductor to cause current flow?
voltage is applied to a conductor to cause a current flow
How do we usually think of voltage as the cause and currents the effect?
You apply a voltage across a load and the result is that a current flows through the load. So you must have the voltage present, the cause, before current flow, the effect. Think of voltage as pressure and current as flow.
What cause the voltage t lead current in an ac circuit?
Voltage leads current or, more specifically current lags voltage, in an inductive circuit. This is because an inductor resists a change in current.
What is meant by lagging and leading circuit?
The terms, 'lagging' and 'leading', describe the relationship between a circuit's load current and supply voltage. They describe whether the load current waveform is leading or lagging the supply voltage -always the current, never the voltage. Inductive loads always cause the current to lag the supply voltage, whereas capacitive loads always cause the current to lead the supply voltage.
What is meant by lead and lag?
The terms, 'lagging' and 'leading', describe the relationship between a circuit's load current and supply voltage. They describe whether the load current waveform is leading or lagging the supply voltage -always the current, never the voltage. Inductive loads always cause the current to lag the supply voltage, whereas capacitive loads always cause the current to lead the supply voltage.
What does voltage cause?
The ability of current to move through a wire.
Can a short circuit cause low voltage?
Most likely a short circuit will cause no voltage. Due to the high current on a short circuit fault the over current protection of the circuit will trip. This will cut the voltage supply off completely.
How does a voltage tester work?
A voltage tester is a popular tool with electricians. A voltage tester determines if there is a current running through a wire and determines if the current needs grounding.
