Can you change current without changing voltage?

In order to change the voltage without changing the current, you must change the resistance a porportional amount. If the load resistance varies, you can use a constant current source to maintain the current level, as hgmjr implied.

How can you reduce current without reducing voltage?

Add resistors to the circuit to increase the total resistance. A higher resistance results in a lower amperage. The resistance of a resistor is measured in ohms. A resistor works by “resisting” the flow of current through the circuit.

How do you reduce voltage and maintain current?

V=IR so to maintain a constant voltage while decreasing current you simply have to increase resistance by the same amount you have decreased your current. If you decrease the current by half then you will need to double your resistance.

Does changing voltage change current?

The relationship between voltage, current, and resistance is described by Ohm’s law. In other words, if we increase the voltage, then the current will increase. But, if we increase the resistance, then the current will decrease.

How can we reduce the current without change in power?

You may be able to regulate the charging current with a resistor. When using a resistor to regulate current the power supply must put out a higher voltage than the battery, which the resistor then drops down at a current determined by its value and the voltage drop across it.

How can we reduce current without change in power?

Reduce current voltage goes down. Limit current with a circuit breaker limited at a particular current eg: 10 Amps. Most loads limit their own current needs and this is covered by Ohm’s Law. A resistive load of 3000Watts at 230 Volts will draw 13.043 Amps.

Why there is no change in the load current when the supply voltage is changed?

In a transformer, secondary current depends on the load and the primary current depends upon the load current and turns ratio. So, as the current decreases with increasing voltage and current increases with decreasing of voltage that is why power does not change in Transformer.

Can you have amperage without voltage?

Originally Answered: Can we have a current without voltage? No.., because current flows with virtue of voltage and voltage is the potential difference , also current can’t flow between same potentials ( Voltage=0).

How to change the voltage without changing the current?

In order to change the voltage without changing the current, you must change the resistance a porportional amount. If the load resistance varies, you can use a constant current source to maintain the current level, as hgmjr implied.

What flows in a circuit without a current?

What flows is not the voltage but the charge, and that flow is called current. Voltage can be without a current, if you have a single charge, that charge induces a voltage in all space, even if it’s empty.

What power supply do I need for a current limiting circuit?

Generally your current limiting circuit will require a bit of voltage “headroom” to operate in. That means you’ll need an unregulated PSU of > 5 V and regulate it down to 5 V while monitoring the current. It’s a while since I’ve read up on the old LM723 voltage regulator but they offer voltage and current limiting.

Does current depend on voltage or voltage?

Current depends upon the voltage if the load resistor is kept constant. If we want to change current either we have to change load resistor or voltage, output power is also effected with it. Normally it is not possible to change load resistor, so if we want to get low or higher output we have to vary input voltage.