Question

Help I'm confused >:(

Answer 1

Answer:

(A) 4V is the correct option

Explanation:

First let us find the current passing through the circuit

To know that, we have to find effective resistance of the circuit as we know

V = IR => I = V/R __[Here, R is effective Resistance]

So, In circuit, 100Ω and 200Ω resistors are in series

Hence, effective resistance = 100 + 200 = 300Ω

So, I = V/R

$I = \frac{V}{R} = \frac{12}{300} = 4 \times 10^{-2} A$

So, I = 4 × 10⁻²

Now, the voltage across the 100Ω resistor is given by

V = IR = 4 × 10⁻² × 100

$V_{100\Omega} = 4V$

Hope it helps

Please mark as brainliest