Question

P.d between two points of a wire carrying 2 A current is 5 V. Calculate the resistance between these points.

Answer 1

Answer:

From Ohm's law we have:

Potential differenceCurrent= Resistance

or VI=R

Here, Potential difference, V=0.1 volt

Current, I=2 amperes

And, Resistance, R=? (To be calculated)

Putting these values in the above formula, we get:

0.12=R

0.05=R

or Resistance, R=0.05 ohm (or 0.05Ω)

Answer 2

Answer: 5/2 Ω.

ohm law:

V equal to IR

5  EQUAL TO  2R

R EQUAL TO 5/2