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What else can I help you with?
How do you find current if the resistance is not given?
You can find the current by using Ohm's Law, which states that current (I) is equal to voltage (V) divided by resistance (R). If the resistance is not given, you will need to know the voltage and another parameter such as power (P) or conductance (G) to calculate the current. Alternatively, you can measure the current using an ammeter in a circuit.
What are the three quantities that may be considered as parameters in order to change the speed of a dc motors?
Input voltage Load Number of windings and arms
What are the methods used to step up the current?
Current is power. One can not get more or step up the power if one only have a limited amount of power. You can not make 1 amp turn into two amps. you can however step up the voltage, ie the speed of which electricity flows. in an ideal world you can double the speed, but then you also halves the current. If you however have a heater that works on 12 V, you can increase the voltage in order to get more heat out, allthough not what the heater is designed for. it may melt, cause a fire etc. If increasing the voltage you allso increase the drain on the battery, this could possibly be considered a step up of the current.
In order to make an electric current flow it is necessary to have?
In order to make an electric current flow, you need a closed circuit that includes a source of electrical energy, such as a battery or a power outlet, and a complete path for the current to flow, typically made up of conductive materials like copper wires. The flow of electric current occurs when there is a potential difference (voltage) between two points in the circuit, causing electrons to move from one point to another.
Will the order in which you hook up the light bulbs in series affect the intensity of light each emits?
No... the order won't matter. Since the bulbs are hooked up in series, the total resistance across the circuit, regardless of the order, will remain the same. Therefore, the lights will have the same intensity regardless of the order. Also, by Kirchoff's Current Law, the signed sum of the currents entering a node is equal to zero. As a consequence, in a series circuit, the current at every point in that circuit is the same.
Why do transmission lines use alternating current?
Transmission lines use alternating current in order to support stepping-up and stepping-down of the voltage with transformers. Voltage is stepped-up at the power station, sent over the transmission lines, and stepped-down at the receiver. (This is a simplified explanation.) By stepping-up, you reduce the current carrying requirement of the lines, and they can thus be smaller.You could not do this with direct current as transformers only work for alternating current.
What happen when voltage decreases and current increases?
Yes. As long as the load stays the same. Voltage equals the resistance of the load times the current or amperage. Or , in this case, as an example, if the load is the same, the voltage is 240 and current is 10 amps. At 120 volts, the current is 20 amps. Current x resistance(or the load)=voltage. With simple math, the equation can be moved around.
What is the mathematical equation to find electric current?
Ohm's law is the basic answer. Voltage = Current * Resistance is ohms law. In order to find current divide voltage by Resistance V/R=I where I is current.
According to Ohm's Law how is voltage related to resistance and current?
1). Voltage = (resistance) x (current)2). Current = (voltage) / (resistance)3). Resistance = (voltage) / (current)I think #2 is Ohm's original statement, but any one of these can be massaged algebraicallyin order to derive the other two.
What are to things needed in order for current to flow in a circuit?
voltage and ground
What are 4 types of DC voltage?
There is only 1 type of DC voltage, and that is direct current. In order to better answer your question, you need to be more specific.
When current flow in electrical circuit is 2 amps what will the current flow be if the power doubles and the voltage remains the same?
Since power is voltage times amperes, in order to double the power while voltage remains the same, you must double the current - 4 amps in this case.
What kind of electricity is caused by a continuous flow of electricity?
Current electricity is the kind of electricity that is caused by a continuous flow of electricity. In order for this to happen there must be a voltage present across a conductor, for example in overhead power lines.
If voltage and current are proportional why do they increase voltage in powerlines in order to decrease current?
Low current will equal low power losses due to the resistance of the cable. I squared R. (I is transmission current and R is resistance/Metre of cable) by increasing the voltage for the same amount of power the current decreases. Power transmission will take that advantage to transfer less current for the same amount of power.
Why do you have voltage on open circuit?
Voltage is simply electrical potential. You do not have to have current to have voltage, but you have to have both voltage and current in order to have power transfer.Voltage = joules per coulombCurrent = coulombs per secondWatts = Voltage times current = joules per secondAnswer'Voltage' is a synonym for 'potential difference', not potential. A potential difference exists between two points which are at different potentials due to an imbalance of their electrical charges.
How much resistance is in the circuit if it uses a current of 0.01 A?
There is insufficient information in the question to properly answer it. You need to specify, also, the voltage, in order to determine resistance from current. Please restate the question. Ohm's Law: Resistance = voltage divided by current.
How do you decrease voltage in dc without decreasing amperage?
In order to decrease voltage without decreasing amperes you have to also decrease resistance. Ohm's Law: Voltage = current times resistance
