2 years ago

HELP PLS !!! Calculate the total current drawn from the 9-volt battery

Physics

1 answer:

cricket20 [7]2 years ago

6 0

Answer:

0.82A

Explanation:

first we resolve the resistors in parallel

i.e 1/R=1/R1+1/R2

=1/R=1/6+1/3

1/R=1/2

R=2/1=2ohms

now we resolve all resistors in series

R=R1+R2+R3

R=6+3+2(the two parallel resistors we resolved are now in series with the others)

R=11ohms

From ohm's law V=IR

I=V/R=9/11= 0.82A.

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