When you are at home, turning off a light usually does not turn off your T. V. This is because
a. most electrical devices in a house are on parallel circuits
b. most electrical devices in a house are on series circuits
c. they have different sources of voltage

When you are at home, turning off a light usually does not turn off your T.V. This is because most electrical devices in a house are on parallel circuits.

In series circuit connection, the current flowing in each circuit component is the same and results in an increase in potential drop. This is the major our homes and factories use parallel circuit connection.

In parallel circuit connection, the current flowing in each circuit component is different while the voltage is the same. This type of arrangement or connection reduces potential drop.

In parallel circuit connection, turning off light at one point will not disconnect the other point.

Thus, we can conclude that when you are at home, turning off a light usually does not turn off your T.V. This is because most electrical devices in a house are on parallel circuits.

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B. most electrical devices in a house are on parallel circuits.

Explanation:

Household wiring is a mostly a series of parallel circuits. Otherwise, if you were to turn your oven (or television, or your computer, or any other appliance off, the rest of your home's electrical system will cease to operate.

Therefore, they are in parallel circuits.

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) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

t = 1/400 h   ⇔ 0.0025 h ⇔ 9s ⇔ 0.15 m

any of the answers are correct.