Question

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Calculate the power in resistor X when the voltage across X is 2.1 V and the current in resistor
X is 0.041 A
(2 Points)

Answer 1

Answer:

P = 0.0861 W = 86.1 mW

Explanation:

The electrical power in a resistor is defined as the product of the current passing through that resistor and the voltage across that resistor. Therefore, the formula can be written as follows:

$P = VI$

where,

P = Power in Resistor X = ?

V = Voltage across resistor X =  2.1 V

I = Current passing through resistor X = 0.041 A

Therefore,

$P = (2.1\ V)(0.041\ A)$

P = 0.0861 W = 86.1 mW