Question

One 10.0 Ω resistor is wired in series with two 5.0 Ω resistors in parallel. A 9.0 V battery supplies power to the circuit. What is the total current through the circuit?

A. 0.45 A

B. 0.72 A

C. 0.87 A

D. 1.1 A

Answer 1

here is our circuit:

Answer 2

ok! what do we do? :/

Answer 3

here the total resistance or equivalent resistance is:
\[{R_{TOTAL}} = 10 + \frac{5}{2} = ...Ohms\]

Answer 4

ok! we get 12.5?

Answer 5

ok!

Answer 6

so , applying the Ohm's law, we get:
\[\Large I = \frac{V}{{{R_{TOTAL}}}} = \frac{9}{{12.5}} = ...Amperes\]

Answer 7

0.72! so choice B is our solution?

Answer 8

correct!

Answer 9

yay! thanks!!:)

Answer 10

:):)