Si se desea construir un circuito con poca resistencia se debe colocar: -En serie
-Mixto
-Paralelo
-Ninguna de las anteriores
AYUDAAA

Parallel combination

Explanation:

There are two types of combination of resistances.

1. Series circuit :When the resistances are connected back to back, the combination is called series combination. Here, the current in each resistance is same. The effective resistance is given by

R = R' + R''

2. Parallel combination: When the one ends of all the resistances connected at a point and the other end is connected at other point, the combination is said to be parallel. Here, the voltage difference is same for all the resistances.

The effective resistance is given by

So, to get the effective resistance is small, we have to connect the resistances in parallel combination.

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."