Mar 22, 2018 · Voltage and Current relation; The relation between voltage and current is linear. i.e. with larger voltage, the current will be higher and lower current for smaller voltage. Ohms Law Analogy. The relationship between voltage, current, and resistance can be known by finding the third quantity from the known two values.
The level of the output voltage level is 0 dB, that is 100% (factor or ratio = 1). The level of −3 dB is equivalent to 70.7% (factor = 0.7071), and the level of −6 dB is equivalent to 50% (factor = 1/2 = 0.5) of the initial voltage. This applies to the field quantity voltage or sound pressure.
Taking or calculating voltage values is a lot easier compared to wattage as it is more straightforward. In order to get a watt reading, you would need to get both the current and voltage. This is complicated further by something called power factor which is due to the existence of reactive components in the circuit such as capacitors and inductors.
Jun 14, 2020 · In the circuit shown (figure below), when an idea voltage source of 60 V is connected between A and B (positive towards A), there is a 30 Watt power supplied to the circuit. Now, by applying the Superposition theorem, calculate the power supplied to the circuit if an ideal voltage source of 90V is connected instead between A and B (same polarity). Answer: 193.68 Watts Note: The values of the ...
Suppose the lowest voltage on a 3-phase circuit is 230V, while another phase is 235V, and the third phase is 240V. Is this a significant voltage imbalance? Let's use the 4% rule to see. Four percent of the lowest voltage (230V) is 9.2V (230V24%49.2V). The difference between the highest voltage (240V) and the lowest voltage (230V) is 10V.
(a) Use Ampere's law to find the magnetic field B at any point in the volume between the conductors (b) Use the energy density for the magnetic field u = B2/2/Jo to calculate the enerw stored in the thin cylindrical region with thickness dr between the conductors(a < T < b) with inner radius r, and outer radius r + dr, and length l.
Therefore the total amperage between the two resistive paths must equal 1.5 Amps (Rule 3). Now we can figure out exactly what each path is pulling using Ohm's Law once more. Remember that the voltage is the same everywhere in a parallel circuit. So we know the voltage and the resistance:
voltage can be obtained from this graph. For example, if the switching voltage is ﬁxed in a certain application, the maximum switching current can be obtained from the intersection between the voltage on the axis and the maximum switching power. Form A contacts (normally open contacts) Form B contacts (normally closed contacts) Form C contacts
I am not sure how you are measuring the 0.2amps, that will be a function of your load, and a good battery should definitely be able to supply much more than that. The voltage will gradually go down as your battery discharges. You can probably find a datasheet for the battery you are using and get more specific information.