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 7 of 11.

Sibo mondolo said:   1 decade ago
We known that, *according to ohm's law R = V/I =110/3.5 = 31.42 ohm.

O p gautam said:   1 decade ago
Resistance may not be measured in decimal. So answer in 31 ohm is correct.

Dave Mudra said:   1 decade ago
Yes, its true.

Real equation is V = I*R.

According above related answer the equation is R = V/I.

Pradeep kumar saw said:   1 decade ago
We Know that,
R = V/I.

Given that,
V = 110 Volt AND I = 3.5A.

So,
R = 110/3.5 = 31.4 OHM.

Jitendra Behera said:   1 decade ago
We know that R=V/I.

R=110/3. 5=31. 4ohm.

Ans- [D]. 31ohm.

RAVI PRAKASH said:   1 decade ago
According to ohms law,

R=V/I.

So R= 1103.5
= 31.4 ohms.

So Answer is option D.

Prasanth said:   1 decade ago
According to Ohm's law V=IR.

But we need 'R'.

So bring the I to this side then it will be divided by V,
As given below,

R=V(110)/I(3.5)
R=31.4 ohms.

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.

Satish.J said:   1 decade ago
According to Ohm's law,

Volatage is directly proportional to Current.
i.e. V=IR

R=V/I=110/3.5=31.428 ohms

Kovvuru hussenaiah said:   1 decade ago
Yes, According to problem voltage(v) is 110v and Current(I)=3.5A.

Then R=V/I=110/3.5=31.42 then approximately=31ohm.


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