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natali 33 [55]
3 years ago
6

The power is an electrical circuit is given by the equation P = i^2R, where I is the current flowing through the circuit and R i

s the resistance of the circuit. What is the power in a circuit that has a current of 0.1 amps and a resistance of 18 ohms?
A. 1.8 watts
B. 0.1 watts
C. 180 watts
D. 0.18 watts
Physics
2 answers:
svp [43]3 years ago
5 0

Formula

Power = I^2 * R

Givens

R =  18 ohms

I = 0.1 amperes.

Solution

P = 0.1^2 * 18

P = 0.01 * 18

P = 0.18 watts.

D <<<< Answer


Elanso [62]3 years ago
5 0

P=RI²=18*0,1²=18*0,01=0,18 W

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a. Speed is defined as rate of change of distance per unit time whereas velocity is defined as rate of change of displacement per unit time.

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e. v_a=21\ m.s^{-1}

f. \vec v_a=9\ m.s^{-1} towards right.

Explanation:

a.

Speed is a scalar quantity while velocity is a vector quantity.

Speed is defined as rate of change of distance per unit time whereas velocity is defined as rate of change of displacement per unit time.

Speed is a directionless quantity while velocity constitutes direction.

b.

<em>Total time of round trip when we're given:</em>

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<u>Average speed:</u>

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<u>Average velocity:</u>

\vec v_a=\frac{s}{t}

\vec v_a=\frac{54000}{6000}

\vec v_a=9\ m.s^{-1} towards right.

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