# Basic Electronics

Discussion in 'General Electronics Chat' started by asa47, Jun 28, 2013.

1. ### asa47 Thread Starter New Member

Apr 5, 2013
1
0
Since power = Voltage * current,
does it mean that by reducing the value of voltage we can take the value of current to any peak value?

For example, if the value of input power from the source is 230V, and the current required in the circuit is 10A, what is the voltage value that has to be maintained by stepping it with the help of a transformer or so?

What has the power got to do with these electronic elements........

2. ### studiot AAC Fanatic!

Nov 9, 2007
5,005
513
Sorry, no. Quite the reverse in fact.

Whilst there are circuits that are designed to draw a specific current, regardless of the applied voltage, the current draw in vast majority of circuits depends upon the applied voltage.

The simplest form of dependence is Ohm's Law which states that the current is proportional to the applied voltage so the greater the applied voltage the greater the current draw. The constant of proportionality is known as the resistance for direct current (DC) circuits and the impedance for alternating current (AC) circuits.

Does this help?