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What is reverse resistance?
Reverse resistance refers to the opposition to the flow of electric current in the reverse direction within a semiconductor device, such as a diode or transistor. In these devices, reverse resistance is typically much higher than forward resistance, allowing current to flow primarily in one direction. This characteristic is crucial for the functionality of components like diodes, which are designed to block current flow when reverse-biased. High reverse resistance helps prevent unwanted current leakage, ensuring efficient operation in electronic circuits.
If a circuit has a resistance of 4 ohm's how much voltage is needed to produce a 1.4 current in the circuit?
Voltage across a resistance = (resistance) x (current through the resistance) =4 x 1.4 = 5.6If the ' 1.4 ' is Amperes of current, then the required voltage is 5.6 volts.
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 much resistance is in the circuit if it uses a current of 10ma?
Just use Ohms Law: V=IR, that is, voltage (in Volt) = current (in Ampere) x resistance (in Ohms).
Does increasing the resistance increase the electric current?
If the current through a pure metallic conductor causes the temperature of that conductor to rise, then its resistance will increase. A practical example of this is an electric lamp. The cold resistance of a lamp is very much lower than the hot resistance.
How much electromotive force is need to force 15 ampere?
15 times the resistance of the device you want to force the current through.
How do you calculate absolute maximum current?
The absolute maximum current is used as part of a rating system, particularly for electronic components. It is a figure that a manufacturer will quote to indicate how much current can pass into or out of a device or a specific connection on the device. Exceeding that limit is likely to damage the device. The absolute maximum value is one that should never be exceeded but it is also normally higher than the maximum recommended current. The value is often measured during tests rather than calculated. The question might refer to the amount of current that might be drawn by a device. In this instance, to calculate the absolute maximum current that a device or component might draw there are two pieces of information needed. The first is the voltage that is applied to the device. The second is the lowest possible resistance that the device can have. Devices such as resistors, filament lamps and heaters have a constant resistance but active devices such as amplifiers, computers etc. can change resistance as they operate. It can be hard to find the resistance with some devices but once it has been established, Ohm's Law can be used to calculate the maximum current using the equation current = Volts divided by resistance. It is normally much easier to measure the current using an ammeter rather than trying to find the lowest resistance.
Is a property that determines how much current will flow for a given source voltage whereas a is a device that controls the current in a circuit.?
Resistance is the property that determines how much current will flow for a given source voltage, measured in ohms. A resistor is a passive electronic component that is used to control the current in a circuit by offering a specific amount of resistance to the flow of electricity.
How much current runs through a handheld electronic device that uses a 6-volt battery and has an internal resistance of 12 ohms?
I=E/R Answer: .5 Amps
How much current will be taken from a 220V line if the resistance is 55 ohms?
Current = Voltage / resistance (more properly impedance) so the current will be 220/55 or 4 amps.
How do you figure out how much current is in an electrical wire?
If you know the voltage and resistance, then current = voltage divided by resistance. Otherwise, you can attach an ammeter into the circuit (in series).
What device used to open a circuit if too much current flows through it?
A circuit breaker is a device used to open a circuit if too much current flows through it.
If a circuit has a resistance of 4 ohm's how much voltage is needed to produce a 1.4 current in the circuit?
Voltage across a resistance = (resistance) x (current through the resistance) =4 x 1.4 = 5.6If the ' 1.4 ' is Amperes of current, then the required voltage is 5.6 volts.
How much current 2.2 Megohm?
"Ohm" and its multiples is not a unit of current."Ampere" and its multiples is.The current through a 2.2-megohm resistance is(the voltage across the resistance)/(2,200,000) amperes .
How much resistance does a light bulb create if it has a current of 25 mA around it in a 9 V circuit?
how much resistance does a light bulb creat if iyt has a current of 25 mA around it in a 9 V circuit?
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.
Resistance to current flow is measured in?
Resistance to current flow is measured in ohms, denoted by the symbol Ω. It quantifies how much a material or component impedes the flow of electric current through it.
