Two resistors of 4Ω each are connected in parallels to a 5 V battery source. The total current in the circuit is:

Correct option is D

Given:

Two resistors of 4Ω each in parallel

A 5V battery source.

Formula Used:

For resistors in parallel,

​$$\frac{1}{R_{\text{eq}}} = \frac{1}{R_1} + \frac{1}{R_2}$$​​

Ohm's law,

​$$V = I \cdot R$$​

​V is the voltage (5V)

I is the current (unknown)

R is the resistance

​Solution:

​$$\frac{1}{R_{\text{eq}}} = \frac{1}{4} + \frac{1}{4} = \frac{2}{4} = \frac{1}{2}$$​​

​$$R_{\text{eq}} = 2 \, \Omega$$​​

​$$I = \frac{V}{R} = \frac{5V}{2 \, \Omega} = 2.5 \, \text{A}$$​​