Can you have high voltage and high current?
Table of Contents
Can you have high voltage and high current?
Hence, the specific answer to your question is no. High voltages do not equal high currents. Voltage and current move inversely to each other. Higher voltage means lower current, and vice-versa.
How do you produce a high current?
Even if a circuit has a low voltage, it can still produce a high current if the resistance of the circuit is very small. If we go to Ohm’s Law, which is I=V/R (Current=Voltage/Resistance), we can see that the smaller the resistance in a circuit, the greater the amount of current is produced.
How do you trigger a circuit?
A circuit or network in which the output changes abruptly with an infinitesimal change in input at a predetermined operating point. Also known as trigger. A circuit in which an action is initiated by an input pulse, as in a radar modulator.
What is trigger current?
Trigger LED current is specified for products that perform binary operation of output ON/OFF such as IC coupler of logic output, photorelay, and triac output coupler. “Trigger LED current” means “LED current that triggers change in the status”.
Can you have high current and low voltage?
Even if a circuit has a low voltage, it can still produce a high current if the resistance of the circuit is very small. This can happen if you use a very low-resistance wire with no resistor or other resistance in a circuit. …
How does low voltage cause high current?
If the voltage decreases, the current will increase in roughly the same proportion that the voltage decreases. For example, a 10\% voltage decrease would cause a 10\% amperage increase. In this case, you already have a high current draw, so voltage is already lower than it would be without the load.
What is an electrical trigger?
An electronic circuit that generates or modifies an existing waveform to produce a pulse of short time duration with a fast-rising leading edge. This waveform, or trigger, is normally used to initiate a change of state of some relaxation device, such as a multivibrator.
Which device is used for triggering SCR?
1. Unijunction Transistor. A Unijunction Transistor is a 3 terminal device with a single PN junction and is basically used to trigger a SCR or a TRIAC. It is a unidirectional device.
What is voltage trigger?
A trigger voltage is frequently generated by a spark coil mechanism which is usually triggered by the shutter contacts in the camera. This voltage is positioned on the low-voltage side of the spark coil so that it only appears on the flash contact.