Question

What is the equivalent resistance of the circuit shown?

A. 0.87 Ù

B. 1.2 Ù

C. 5.9 Ù

D. 6.2 Ù

Answer 1

first step:
the equivalent circuit is:

where R is:
\[\Large R = \frac{1}{{\frac{1}{{4.5}} + \frac{1}{{1.3}} + \frac{1}{{6.3}}}} = ...Ohms\]

Answer 2

0.869? so choice A is our solution?

Answer 3

no, I got a different result since:
\[\Large R = \frac{1}{{\frac{1}{{4.5}} + \frac{1}{{1.3}} + \frac{1}{{6.3}}}} = 1.15Ohms\]

Answer 4

so total resistance is:
\[\Large {R_{TOTAL}} = 5 + 1.15 = ...Ohms\]

Answer 5

ohh okay! i am not sure why i got a different result! so then we get 6.15? about 6.2? choice D is our solution?

Answer 6

yes! That's right!

Answer 7

ooh ok! yay! thanks!:)

Answer 8

:)