Question

Find the current through 4 $\Omega$ resistor in the circuit shown.

• A. $0A$
• B. $\frac{6}{19}A$
• C. $\frac{19}{6}A$
• D. $0.4A$

Answer 1

The correct option is A $0A$

Consider that some amount of current, given by the combination of two shown batteries, reaches the junction P. Now it has two paths to take, one with no resistance and the other with the resistance of $4\Omega$. In such situations, when there is a short circuit like this, current will always take the path of least or no resistance. Hence zero current will pass through the resistor of $4\Omega$.