sophash2
Answered

The potential difference across a variable resistor is 11V and the current flowing through it is 0.4A. What is the present resistance of this variable resistor? Give your answer to two significant figures.



Answer :

Answer:

R=27.5 ohms

Explanation:

Using Ohm's Law (V = I × R), rearrange to find R:

R = V / I = 11 V / 0.4 A = 27.5 ohms