in a flashing led circuit connected in series
you could use a current limiting diode such as a Zenner, or a current limiting resistor in series with the LED
A current limiting resistor for ac devices.
A: It is not a filter but rather a limiting resistor for the current.
It may be better to say that a resistor allows current flow through itself rather than to say that a resistor is a device that will "use" current. It does "resist" current flow, and thus limits it to some degree depending on its resistance. (More resistance means more limiting of current flow.) The resistor "drops voltage" as well limits current. A resistor "feels voltage" from some source, and the voltage it "feels" is said to be the "voltage drop" of the resistor. The voltage drop is the voltage that could be measured across that resistor with a meter.
to keep the signal awy from the dc limit ,, to ban the clipping of the signal
A resistor in a circuit works by impeding the flow of electrical current, which helps regulate the amount of current passing through the circuit. This is achieved by converting electrical energy into heat energy as the current passes through the resistor, limiting the flow of electricity.
You can only use a resistor to drop a voltage at a constant current. If you know the current, use Ohm's law to calculate the resistor value.
resistor is a passive component which opposes the current flowing through a closed ckt. use in opposition of current in ckt .
No, not directly. A l.e.d. has to have the current through it limited to a safe value. This can be done with a simple series resistor or by operating the l.e.d. from a current source rather than a voltage source. Some l.e.ds are supplied in a housing which has an in-built current limiting resistor.
A varistor is a variable resistor. It changes value dependent on the current draw and operates by changing its value as the resistor's temperature changes. For instance, during turn-on of a device, the resistor heats up causing the resistor to change it's value, thereby limiting the inrush current to the device. Once the initial start-up current is reduced and the device is operating normally, the resistor cools down and changes value again.
It is a passive electrical device with a resistive value of 1000 ohms, used for limiting current or dropping voltage.
A resistor is a device that can slow down an electric current by dissipating some of the energy as heat. This is achieved by creating resistance in the flow of electricity, limiting the current that can pass through.