Question

4ohm,8ohm,R resistors are connected in series. Resultant resistance is 20ohm.Then R=? A.6ohm ,B.4ohm,C.18ohm D.8ohm​

Answer 1

Answer:

ans. 8 ohm

Explanation:

in series combination Req = R¹+R²+R³

so, 20= 4+8+R

therefore, R= 20-4-8= 20-12 = 8 ohn

Answer 2

Answer:

8 ohms

Explanation:

option D)

I hope you understand

ok.