Question

An electrical device that has a specification of 200 v, 80 ohms, then the power generated by the electric tool is​

Answer 1

To Find:

To calculate a power used by an electrical device that has to do with voltage and resistance

Formula Used:

$\boxed {\bold {P = V \times I}}\:$

Details about:

P = electric power (W)

V = voltage (V)

I = electric current (A)

As for calculating electric current, the following formula can be used:

$\boxed {\bold {I = \frac {V}{R}}}\:$

Under the condition :

I = strong electric current (A)

V = voltage (V)

R = resistance (Ω)

So, if what is known is resistance and voltage, to calculate it you can use a practical formula:

$\bold {P = V \times I} \\ \bold {P = V \times \frac {V} {R}} \\ \boxed {\bold {P = \frac {V ^ {2} } {R}}}$

Completion Step:

Known :

V = mains voltage = 200 V

R = electrical resistance = 80 Ω

Asked: P = power = ... W

Answer:

$\sf\:P = \frac {V ^ {2}} {R} \\ P = \frac {200 ^ {2}} {80} \\P = \frac {40000} {80} = 500 \:W$

Answer 2

Explanation:

We know that ,

➡Power = (voltage)^2/resistance

➡Power = 200×200/80

➡Power=500 Watt

Hope it will help you mate✌✌✌

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