Current Electricity - Result Question 31

33. What will be the equivalent resistance of circuit shown in figure between two points $A$ and $D$

[1996]

(a) $10 \Omega$

(b) $20 \Omega$

(c) $30 \Omega$

(d) $40 \Omega$

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Answer:

Correct Answer: 33. (c)

Solution:

  1. (c)

Equivalent Circuit

Equivalent Resistance of circuit,

$=10 \Omega+\frac{20 \times 20}{20+20}+10=10+10+10=30 \Omega$