Question

caluclate the effective resistence of p and q
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Answer 1

Answer:

3.333Ω

Explanation:

In this question we need to find the effective resistance between P and Q:

Here the 3 Ω and 7 Ω, 6 Ω and 4 Ω are in series combination

When any two resistors are in series combination:

Req = R₁+R₂

For the 3 ohms and 7 ohms:

Req = 3 Ω + 7 Ω

Req = 10 Ω

For the 6 ohms and 4 ohms:

Req = 6 Ω + 4 Ω

Req = 10Ω

Now this setup results in three 10 Ω in parallel:

When any three resistors are in parallel:

$\frac{1}{Req} = \frac{1}{R1} +\frac{1}{R2}+\frac{1}{R3}$

$\frac{1}{Req} = \frac{1}{10} +\frac{1}{10}+\frac{1}{10}$

$\frac{1}{Req} = \frac{3}{10}$

$Req = \frac{10}{3}$

Req = 3.333 Ω