Electronics - Ohm's Law - Discussion

Discussion Forum : Ohm's Law - General Questions (Q.No. 14)
14.
What electromotive force would cause 20 A of current to flow through a 500 omega.gif resistor?
0.04 V
2.5 V
25.0 V
10,000 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
10 comments Page 1 of 1.

Umair said:   4 years ago
The formula which is describing above of emf is absolutely wrong, the correct one is Emf =V+ir.

Kavita said:   6 years ago
Thanks all for explaining.

Hani said:   7 years ago
Emf unit is V and jouls per coulomb not Newton.

Omprakash suman said:   8 years ago
V= IR.
V=20*500.
V=10000.
(3)

Jagrat said:   1 decade ago
Here,
emf, refers to voltage generated by a battery.

So,
emf = v = I*R = 20*500 = 10,000V.
(1)

Vignesh said:   1 decade ago
Yes chandu is correct because electro motive force refers to voltage generated by a battery or magnetic force according to faradays law.

So emf=I*R.

Vasu said:   1 decade ago
Nice doubt asked ramlath. I too want to know the answer.

Ramlath said:   1 decade ago
Is EMF and voltage is same.............?

Hemanth said:   1 decade ago
Thank you.

Chandu said:   1 decade ago
V = IR

V = 20*500 = 10,000 V.
(1)

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