You might have a flashlight that runs (2) d-cells of 1.5 volts each in series. the bulb is rated for 0.7 amps. what’s its resistance?

The value of resistance is 4.28 Ω.

Explanation:

Voltage of single d-cells = 1.5 V

Two d-cells are in series with in a flashlight.

(series arrangement)

So, Total voltage in the flash light:

V = 1.5 V + 1.5 V = 3.0 V

Electrical Current rating of the bulb I= 0.7 A

let the resistance be R

(Ohms law}

The value of resistance is 4.28 Ω.

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the answer is d.indefinite shape but definite volume, let go oogle u out

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answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e