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What is the physical meaning of the vertical intercept for the Voltage vs Current graphs?
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What kind of math do you need to be an electrician?
Arithmetic and basis algebra are good skills to have. For example, Ohm's Law says Voltage = Current x Resistance. If you know Resistance and Voltage and want to solve for current you need to know that Current = Voltage / Resistance.
What is the product of current multiplied by resistance?
Voltage
How do we calculate?
V = I x R V = voltage, I = Current, R = Resistance or it can be calculate like this V = P / I V = Voltage, P = Electric Power, I = Current
How does arc length affect voltage?
The longer you strech the arc, the smaller the voltage. Current rises though.
If both current and resistance are tripled what is the voltage multiplied by?
9.
How can display voltage current characteristics on a cathode ray tube?
To display voltage-current characteristics on a cathode ray tube, you can use an oscilloscope. Connect the voltage signal to the vertical input and the current signal to the horizontal input of the oscilloscope. As you vary the voltage, the resulting current will be displayed as a curve on the screen, showing the relationship between voltage and current.
When alternating current flows through an capacitor current leads voltage by a phase angle of 90 degrees what is the physical interpretation of this phenomenon?
One interpretation is that if you take a capacitor that is not charged, it needs to take some current before any voltage appears across it. Therefore the current must precede the voltage.
What is a relationship among voltage current and resistance in a circuit?
Voltage = (current) x (resistance) Current = (voltage)/(resistance) Resistance = (voltage)/(current)
What is the relationship among voltage current and resistance in a circuit?
Voltage = (current) x (resistance) Current = (voltage)/(resistance) Resistance = (voltage)/(current)
What 3 things does an electrical amplifier amplify?
An electrical amplifier amplifies 2 physical quantities according to the transistors used. If a BJT is used it amplifies the current and if a MOSFET is used it amplifies the voltage. Hybrid amplifiers amplify current as well as voltage so in theory , current voltage and power is amplified.
How is zener diode different from ordinary pn junction diode in its fabrication?
An ideal zener diode will have zero reverse current while the reverse voltage is less than the zener voltage. Once the voltage rises above the zener voltage, the maximum reverse current will become infinite (the device will become a short). On a graph with voltage along the X axis and current along the Y axis, this would be represented by a straight vertical line crossing through the zener voltage. A practical zener diode has a monotonic change from zero current at zero volts, rising gradually as the voltage approaches the zener voltage from below, then rising sharply as the voltage is around the zener voltage. This means that with reverse voltage applied even slightly below the zener voltage there will be some current flow. This can be a problem in some circuits if not understood and accounted for.
Can there be a current with no voltage?
No, There can't Be current without voltage
What is the relationship among voltage circuit and resistance in a circuit?
Voltage = (current) x (resistance) Current = (voltage)/(resistance) Resistance = (voltage)/(current)
What is physical quantity of voltage?
Voltage is a physical quantity that measures the electric potential difference between two points in an electrical circuit. It is expressed in volts (V) and represents the force that drives electric current through a circuit.
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.
What you consume in home current or voltage?
Power is contituted by both current and voltage So we consume both current and voltage
If voltage changes in a ac circuit what happens to current?
Voltage attempts to make a current flow, and current will flow if the circuit is complete. It is possible to have voltage without current, but current cannot flow without voltage. The answer is "yes",voltage remains the same as current moves through the circuit.As the voltage remains constant, current increases in the circuit.
