Can you change resistance and keep current the same?

So same resistor in different situations will behave differently, and current will get adjusted accordingly. R is measured in Ohm. Therefore: if you keep voltage equal and increase the resistance – current will go down.

Can we keep current constant?

Energy can neither be created nor be destroyed. If you want to boost the electric current by keeping everything unchanged (Voltage and Circuit), it never possible.

How will a current change if the resistance of a circuit remains constant while the voltage across the circuit decreases to half its original value?

If the resistance of a circuit remains constant while the voltage across the circuit decreases to half its former value, what change occurs in the current? It is cut in half.

How do you create a constant voltage source?

For a voltage source to provide a constant voltage, it must have a very low internal resistance, preferably zero – even though this might not be practically possible. When the resistance is very low and using the voltage divider rule, most of the voltage will be dropped across the load, which has a higher resistance.

Do resistors change voltage or current?

So following the law a resistor must affect both voltage and current however the reality is that it only changes one size. you also find use cases where only voltage is affected.

How do you control current?

Current limiting components

1. Fuse and Resistors. These are used for simple limiting of current.
2. Circuit Breakers. Circuit breakers are used to cut off power just like the fuse, but their response is slower and might not effective for sensitive circuits.
3. Thermistors.
4. Transistors and Diodes.
5. Current limiting diodes.

What will happen to the current if the resistance is doubled while voltage is kept constant?

The current is directly proportional to the voltage and inversely proportional to the resistance. Any alteration in the voltage will result in the same alteration of the current. So doubling or tripling the resistance will cause the current to be one-half or one-third the original value.

What happens to current If voltage increases and resistance remains constant?

According to Ohm’s law, V=IR (voltage equals current times resistance). So if the voltage increases, then the current increases provided that the resistance remains constant.