Question

$4 \Omega, 8 \Omega, R$ resistors are connected in series. Resultant resistance is $20 \Omega$. Then $R=?$

• A. $6 \Omega$
• B. $4 \Omega$
• C. $18\Omega$
• D. $8 \Omega$

Answer 1

Answer: (D)

$8 \Omega$

Answer 2

The correct option is (D): $8 \Omega$