Question

in a circuit R1=10 ohm r2=40ohm r3= 30 ohm r4= 20ohm and r5 = 60 ohm are connected in parallel with a 12 volt battery. calculate the total resistance and the total current flowing in the circuit ​

Answer 1

Answer:

$\frac{1}{r1} + \frac{1}{r2} = \frac{1}{10} + \frac{1}{40} = \frac{4 + r}{40} = \frac{1}{8}$

$\frac{1}{r3} + \frac{1}{r4} + \frac{1}{r5} = \frac{1}{30} + \frac{1}{20} + \frac{1}{60}$

$Total \: Resistance = 8 \: watt$

$r_1 + r_2 \\ 8 + 10 \\ = 18 \: watt$