Electric Circuit - 2

Electricity and Magnetism Level 1

Find the current through the $10$ ohm resistor is, in amperes.

6

1

2

\frac{2}{3}

1 solution

Chew-Seong Cheong
Oct 31, 2014

Since $10\Omega$ and $20\Omega$ are in series the current $I$ through them is the same and:

$I = \dfrac {60V}{10\Omega + 20\Omega} = \dfrac {60}{30} = \boxed {2} A$

what about 40 and 20 ohm? aren't they to be calculated as parallel

Sarthak Rath - 6 years ago

Their current has no effect on the current of $10 \Omega$ resistor.

Chew-Seong Cheong - 6 years ago