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A 50 Ω resistor in a circuit has a current flowing through it of 2.0 A. What is the power dissipated by the resistor?
A. 50 W
B. 200 W
C. 100 W
D. 25 W

Sagot :

udeakuudenze

Explanation:

A nichrome (ρ = 100x10-8 Ωm) wire has a diameter of 0.40 mm. ... A power line with a resistance of 2 ohms has a current of 80 A in it

1/8 Watt 50 kΩ resistor has 70 V applied.

rahulsharma789888

A 50 Ω resistor in a circuit has a current flowing through it of 2.0 A then the power dissipated by the resistor is 200 Watt. Therefore the correct option is B.

What is power?

The rate of doing work is known as power. The Si unit of power is the watt.

Power =work/time

The mathematical expression for the power is as follows

P = VI

where P is the power

V is the voltage

I is  current passing through the circuit

The expression of power can be represented in many different forms by using the ohms law

As we know from Ohm's law that V= IR

Power = VI

by substituting V=IR in place of the voltage in power formula

P = I²R

As given in the problem a 50 Ω resistor in a circuit has a current flowing through it of 2.0 A so by substituting the values of the current and the resistance in the formula of power

P = 2²×50

  = 200 Watt

Therefore the correct answer is B.

Learn more about power from here

brainly.com/question/3854047

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