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
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
102 comments Page 1 of 11.

Aman said:   6 years ago
According to this,
if you want to simplify the voltage then it will be, V=R * A(V=>31 * 3.5 = 108.5).

Voltage means to push, so push must have to multiply by A(amount of electron) and R(anti-push).

And if you want to simplify the R(anti-push).
Then,
R(anti-push) = V(push)/A(amount of electron),
R = V/A.

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.

Sagar said:   1 decade ago
The ohms law state in a close circuit the strength of current flowing throw a solid conductor at constant temperature is directly proportional to the voltage across the conductor and inversely proportional to the resistance.

So. I = V/R.

=110/3.5 = 31.42 ohm.

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.

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.

Oyelowo Oluwatobiloba said:   8 years ago
From
V = IR
(where V is the Voltage (volts), I current (Ampere), and R resistance(ohms)

V=110v
I=3.5A
R=?

Making R subject from V=IR by dividing through by I
We have R=V/I
R=110/3.5
R= 31.4ohms

Approximately 31ohms.

Manikandan. K said:   1 decade ago
Ohm's law cab be stated in workd as the current in a resistive circuit is directly proportional to its applied voltage and inversely proportional to its resistance.
Formulas are;
I=V/R or V=IR or R=V/I

Sujin adhikari said:   8 years ago
Under a constant physical condition (i.e temperature remains constant) current flowing through the conductor is directly proportional to voltage or (potential different) applied across its end.

Narendra Patil said:   9 years ago
Ohms law states that at constant temperature the current flowing through the conductor is directly proportional to potential different between the two end of the conductor.

That is V = IR.

Imrosekhan said:   9 years ago
According to ohm's law v = IR.

Here we have to find resistance so, R = V/I.
Substitute those values=110/3.5 = 31.42.
But here they are taken as round figure value i.e 31.


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