Question

two resistors 1 ohm and 2 ohm respectively and the bulb of resistance 25 Ohm are connected in series along with 7v battery e then calculate the total resistance and total current flows through the circuit​

Answer 1

Explanation:

• In series combination Equivalent Resistance

$Req = R1 + R2 + R3$

$Req = 1 + 2 + 25$

$Req = 28 \: ohm$

• By Ohms Law

$v \: = i.R$

$i \: = \frac{v}{Req}$

$i \: = \frac{7}{28}$

$i = \frac{1}{4}$

$i \: = 0.25 \: ampere$