Question

for the given circuit three resistors 20 ohms 10 ohms and 5 ohms are connected to 6v battery answer the following questions current in each resistor total current drawn by a battery

Answer 1

hope it will help you

Answer 2

Let the total current be I and current passing through 20 ohm, 10 ohm and 5 ohm be i1, i2 and i3 respectively.

Let the equivalent resistance be R.

V = 6 volts.

Considering that the resistors are connected in series :

R = 20 + 10 + 5 = 35 ohm

Acoording to Ohm's law,

V = IR

So, I = V/R = 6/35 = 0.1714 A.

i1 = i2 = i3 = 01714 A.

Considering that the resistors are connected in parallel :

1/R = 1/5 + 1/10 + 1/20 = 7/20

So, R = 20/7 = 2.857 ohm.

So, I = V/R = 6/2.857 = 2.1 A

i1 = V/20 = 6/20 = 0.3 A

i2 = V/10 = 6/10 = 0.6 A

i3 = V/5 = 6/5 = 1.2 A