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What else can I help you with?
What resistance would produce a current of 25 ampers?
resistance does not produce currents . you need source (like voltage source , current source ,or , discharging capacitor) to generate current .
What voltage is need to make copper hot?
In order to get copper hot, you need a substantial powerdissipated by the copper.Voltage alone is not the issue. You need to determine voltage across the copper, as well as current through the copper. With these two pieces of information, you can calculate the power in watts, or joules per second. Then you consider the thermal situation to decide if that power is going to create a temperature of a certain point.
What 3 things do you need for an electric current?
To have an electric current, you need a source of voltage (such as a battery or power supply), a complete electrical circuit (includes wires and components), and a conductive material (such as copper wire) for electrons to flow through.
What materials are needed to produce electromagnetic power using copper?
To produce electromagnetic power using copper, you will need copper wire, a magnet, and a power source. When a magnet is moved through a coil of copper wire, it induces an electric current in the wire due to electromagnetic induction, generating electrical power.
What materials you need to produce an electromagnets?
To produce an electromagnet, you will need a coil of wire (such as copper wire), a power source (such as a battery), and a magnetic material (such as iron) to create a magnetic field when current flows through the coil.
How do i fine an expression for power that involves only current and voltage?
You do not need ohm's law to relate power to current and voltage. Power is current times voltage. If you know current and voltage, you do not need to know resistance.
Four 50 ohms are connected in series calculate the current in the circuit?
The series resistance is 4 x 50 = 200 Ohms. You would need additional information to get the current; usually this is calculated from the voltage. current = voltage / resistance.The series resistance is 4 x 50 = 200 Ohms. You would need additional information to get the current; usually this is calculated from the voltage. current = voltage / resistance.The series resistance is 4 x 50 = 200 Ohms. You would need additional information to get the current; usually this is calculated from the voltage. current = voltage / resistance.The series resistance is 4 x 50 = 200 Ohms. You would need additional information to get the current; usually this is calculated from the voltage. current = voltage / resistance.
Does watt meter use for ac and dc?
No, on dc the power is measured by the produce of the voltage and current so there is no need for a wattmeter, which would not work on dc anyway.
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.
How do you figure out an appliance's power consumption if you have the voltage and Frequency and Current?
You just need the voltage and the current. Watts = Amps x Volts.
What is external resistance?
External voltage is the ration when there is an increase in current and voltage. If you apply voltage to the outside of a circuit and need to figure out the amount of current flow, that would be the external resistance.
How will you convert a open current circuit to a open voltage circuit?
The first thing you need to know is the internal resistance of the current source, the voltage source will have the same internal resistance. Then compute the open circuit voltage of the current source, this will be the voltage of the voltage source. You are now done.
