In ohms law if R=1 will voltage and current be equal

V=I.R
if R=1 will voltage and current in the circuit will be same
means if i give a 9v supply will i get a 9A current?

Assuming that the total resistance of the circuit is 1 ohm, yes the voltage & current will be equal.

Again, this assumption is that the internal resistance, the resistance of the conductors and the load resistance will remain at a total value of 1 ohm. If this is true the voltage magnitude will be equal to the current magnitude.

The reality is that the internal resistance of your power supply, the conductors and the load itself will most likely change there respective resistance values as they heat up from the current flow passing through them.

Hope this helps,

Newton1Law

V=IR but using very basic algebra, I=V/R. If you know V and R you can solve for I

I=9 volts / 1 ohm = 9 amperes

The interesting question is regarding units. How does volts/ohms become amperes??? The answer is that the ohm is actually defined to be volts/amperes in terms of units. So volts/ohms = volts/(volts/amperes) = amperes.

But that probably just confuses the question... sorry.

Yes. They will be numerically equal in that the current through the load in amps is the same number as the voltage across the load in volts.

Of course they aren't really "equal" as they are different things, like 2 oranges "equals" 2 cigarettes.

Bror, i dont know where u got the idea of this question, but Yes, they will both be equal, but that u can only achieve it in theory and thats what designers wish to achieve one day...