Posted by physics on Sunday, March 15, 2009 at 4:35pm.
The potential differnece across a resistor is 4.4 * 10^2 V. If the resistance of the resistor is 1.8 k ohms, how much current flows throught the resistor?
R=1.8 k ohms
I=?
4.4*10^2 V
V=IR
I=V/R
= 4.4 * 10^2
___________ = 2.44*10
1.8 * 10^
24.4 A
is this done correctly?

physics  bobpursley, Sunday, March 15, 2009 at 4:38pm
Of course not.
440 volts divided by 1800 ohm is not 24 amps.

physics  physics, Sunday, March 15, 2009 at 4:41pm
is it .24 amps?

physics  bobpursley, Sunday, March 15, 2009 at 4:56pm
yes, or 240mA

physics  mysterychicken, Sunday, March 15, 2009 at 4:58pm
which answre would be apropriat for this question
240mA
or .24 amps

physics  bobpursley, Sunday, March 15, 2009 at 5:01pm
MC, either is correct. The most common usage is probably 240mA, but it is no more correct than .24 A

physics  physics, Sunday, March 15, 2009 at 5:07pm
ok, thanks
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