Electrical Engineering - Ohm's Law - Discussion
Discussion Forum : Ohm's Law - General Questions (Q.No. 1)
1.
An electric heater draws 3.5 A from a 110 V source. The resistance of the heating element is approximately
385 
38.5
3.1
31
Discussion:
104 comments Page 2 of 11.
PETER MUSYOKI said:
3 months ago
V= IR.
V =110.
I = 3.5A.
R = ?
R = V/I.
110/3.5.
ANS = 31 ohms.
V =110.
I = 3.5A.
R = ?
R = V/I.
110/3.5.
ANS = 31 ohms.
(1)
Prem said:
2 decades ago
According to ohm's law V = IR
Resistance = voltage/current
=110/3.5
=31.4
Resistance = voltage/current
=110/3.5
=31.4
Reshma said:
2 decades ago
Ya its absolutely right.......
R.ASHOK said:
1 decade ago
According ohm's law it states that the resistance is directly propostional to the voltage & inversly propostional to the current at constant temprature.
i.e R=V/I
R= 110/3.5
R=31.4285ohm so here we are taking approximative value 31.
i.e R=V/I
R= 110/3.5
R=31.4285ohm so here we are taking approximative value 31.
Amir said:
1 decade ago
I(A)=voltage/resistance
or
I=E/R
or
R=E/I
= 110/3.5
=31.42
=31
or
I=E/R
or
R=E/I
= 110/3.5
=31.42
=31
Chittaranjaan said:
1 decade ago
Ya right, but if there would be another option stating 32 then..
SWAMY.M said:
1 decade ago
Yes, I accept it is correct because according to ohm's law state that"resistance is directly propostional to the vg,and invesly propostional to current. Hence we can conclude that I=V/R
I=3.5,v=110,R=?
R=V/I,R=110/3.5=31.42 apprsmtly=31 we can put. that solve.
I=3.5,v=110,R=?
R=V/I,R=110/3.5=31.42 apprsmtly=31 we can put. that solve.
Hpc said:
1 decade ago
Thanks prem.
Saravanakumar said:
1 decade ago
TO use the ohms law V=IR Then R=V/I
R=110/3.5=31.428
R=110/3.5=31.428
Sambathfire said:
1 decade ago
r=v/i
r=110/3.5
r=31.4
r=31
r=110/3.5
r=31.4
r=31
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