0
-- Connect a diode and small resistor in series across a source of AC.
-- Using the point where the diode and resistor meet as a common point, connect
one scope probe (H or V) to the far end of the resistor, and the other scope probe
to the far end of the diode.
-- One dimension of the scope display now corresponds to the voltage across the diode.
-- Since the voltage across the resistor corresponds to the current through it,
the other dimension of the display corresponds to the diode current.
-- I leave you to work out the scale factor for the current, and the various polarities.
What else can I help you with?
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".
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 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.
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 is the Condition for terminal voltage across a secondary cell to be equal to its emf?
The condition for the terminal voltage across a secondary cell to be equal to its emf is when there is no current flowing through the cell. When there is no current, there is no voltage drop across the internal resistance of the cell, and thus the terminal voltage equals the emf.
What does the term oscilloscope mean?
The meaning of the word oscilloscope is a device used for viewing oscillations, electrical current or voltage or, with a display on the screen of a cathode-ray tube.
Is the amount of space charge created at the cathode is primarily controlled by the tube current?
The cathode space charge is determined by the voltage on the filament.
If the cathode voltage of a forward biased silicon diode is 4.5 v what is the anode voltage?
The nominal forward bias voltage of a silicon diode is 0.7V, depending on current and temperature. If the cathode is 4.5V, the anode should be around 5.2V.
Compare an anode and a cathode?
The Anode (+) is what you connect the positive voltage to The Cathode (-) is what you connect the negative voltage to.
What is x-ray tube voltage?
X-Ray voltage means voltage which is applied across anode & cathode, this is of very high voltage (in KV). This causes a high electric field for the moving of electrons emitted from cathode to anode. One more voltage wrt X-ray tube is filament voltage. Filament voltage with some appropriate current is applied to filament for the emitting of electrons. This current is proportional to the intensity of X-ray radiation generated from the tube. More current through the filament causes permanent damage of filament.
How a Cathode Ray Oscilloscope is used to measure Alternating current?
An oscilloscope is, essentially, a voltmeter -it measures current by measuring the voltage drop caused by that current across a standard resistance.
What are the voltage and current characteristics of a series circuit?
The voltage and current characteristics of a zener diode in the forward bias condition (anode more positive than cathode) are similar to an ordinary diode. Below the cutoff voltage, the current is near zero, excepting for leakage current. Starting at the turnon voltage, the diode starts to conduct. As voltage increases, current increases. At this point, increases in current result in very small increases in voltage. Above the breakdown current, the diode tends to self-destruct. The cutoff voltage for a silicon diode typically ranges from 0.6V to 0.7V, and the beginning of the flat region ranges from 0.7V to 1.4V, depending on the current rating of the diode. The cutoff characteristic is also highly dependent on temperature. It is important to understand that, while the current to voltage curve is relatively flat between the cutoff and breakdown points, it is not completely flat. This is normal diode behavior. In the reverse bias condition (anode more negative than cathode), the zener diode behaves very much like its forward bias condition, except that the cutoff voltage and flat region range are higher and, sometimes, flatter. This is what a zener is used for - it makes a good voltage regulator.
How does tha current flows in the circuit?
Most people agree that current flows from the negative (cathode) terminal of the voltage source, through the load, and back to the positive (anode) terminal of the voltage source. This is because it is accepted that current is a flow of electrons. However, most analyses techniques use the convention that current flows from anode to cathode. It is simply a convention. So long as you are consistent in your usage of signs, you will be OK.
How rays can be produce by cathode ray oscilloscope?
A: xray emits from TV, OSCILLOSCOPE and some more instruments due to requirement of hi voltage to see the display
What does the voltage current graph represent in an electrical circuit?
The voltage-current graph in an electrical circuit represents the relationship between voltage (V) and current (I) flowing through the circuit. It shows how the current changes with respect to the voltage, indicating the behavior and characteristics of the circuit components.
What is the v-i characteristics of solar cell?
The V-I (voltage-current) characteristics of a solar cell show the relationship between the voltage applied across the cell and the current generated by the cell. At zero voltage, a solar cell generates its maximum current (short-circuit current), while at zero current, the cell generates its maximum voltage (open-circuit voltage). The V-I curve gives an insight into the performance and behavior of the solar cell under different operating conditions.
How a battery causes electron to move in a circuit?
It is an oxidation/reduction reaction. Electrons flow from anode to cathode.
