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:
102 comments Page 8 of 11.
Bipab said:
1 decade ago
Given that,
V = 110.
I = 3.5.
R = ?
According to ohms law V = IR:
R = V/I.
= 110/3.5 = 31.42 = 31.
V = 110.
I = 3.5.
R = ?
According to ohms law V = IR:
R = V/I.
= 110/3.5 = 31.42 = 31.
Rupesh said:
1 decade ago
Why not the approximate answer is 31.1.
Amit Bhardwaj said:
1 decade ago
V = RI.
I = V/R.
I = 220/3.5.
I = 31.4 A.
I = V/R.
I = 220/3.5.
I = 31.4 A.
Saif said:
1 decade ago
According to ohm's law voltage is directly proportional to current in a specified conductor having some resistance.
i.e V = RI.
I = V/R.
I = 110/3.5.
I = 31.4 A.
i.e V = RI.
I = V/R.
I = 110/3.5.
I = 31.4 A.
Jetendra patel said:
1 decade ago
Absolutely right 110/3.5.
31.428 ohms.
31.428 ohms.
Narayan ch sahoo said:
10 years ago
Very nice question & very beautiful answers.
SATHISH said:
10 years ago
V = IR.
110 = 3.5*R.
R = 110/3.5.
R = 31.42 [CUT OFF].
R = 31.
110 = 3.5*R.
R = 110/3.5.
R = 31.42 [CUT OFF].
R = 31.
Shivaprakash Patil said:
10 years ago
Yes according to Law I = VR.
V = 110 V, I = 3.5 A & R=?
There fore we want Resistance so that R = V/I.
R = 110/3.5.
R = 31.42 or R = 31 Ohm.
V = 110 V, I = 3.5 A & R=?
There fore we want Resistance so that R = V/I.
R = 110/3.5.
R = 31.42 or R = 31 Ohm.
RAVIDAS NAYAK said:
10 years ago
In accordance with ohm's law, current through DC circuit is given by I = V/R.
Here we want to know the value of hating material, that is R.
Since I and V is given so the value of R is given by R = V/I.
That is 110/3.5 which is 31.4.
Here we want to know the value of hating material, that is R.
Since I and V is given so the value of R is given by R = V/I.
That is 110/3.5 which is 31.4.
Saikiran said:
10 years ago
V = IR.
R = V/I.
Given V = 110 V, I= 3.5 A.
R = 110/3.5 = 1100/35 = 22O/7 = 31.42~31.
Make calculations easy.
R = V/I.
Given V = 110 V, I= 3.5 A.
R = 110/3.5 = 1100/35 = 22O/7 = 31.42~31.
Make calculations easy.
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