Let x and y are two unknown resistors. When they are connected in series their equivalent resistance is 15 Ω. When they are connected in parallel, their equivalent resistance is 3.3 Ω.

For series combination,

$x+y=15$ ......(1)

For parallel combination,

$\dfrac{1}{x}+\dfrac{1}{y}=3.3$ ....(2)

We need to find the resistances of these resistors. Solving equation (1) and (2) we get :

x = 0.29 and y = 14.7

Hence, the resistances of these resistors are 0.29 ohms and 14.7 ohms.

6 0

2 years ago

Identify the following as a suspension or a colloid. sand in water

sashaice [31]

I would say that sand in water is a suspension as you can see the particles with the naked eye or a microscope. Also, the solution will settle if left alone and the sand will sink to the bottom.

4 0

3 years ago

Read 2 more answers

PLEASE HELP PHYSICS!!!!! WILL MARK BRAINLIEST IF CORRECT!!!!

denis-greek [22]

Elapsed Time=Time(final)-Time(initial)

The elapsed time for Trial B is 3 seconds.

Average speed=distance traveled/elapsed time

The average speed for Trial B is 1.3 m/s.

hope i helped

8 0

2 years ago