ArnoldoJanning ArnoldoJanning

26-08-2014
Physics

Answered

An electric iron has a rating 750 W,220V. Calculate i) the current passing through it ii) its resistance when in use

Answer :

konrad509 konrad509

26-08-2014

[tex]I=\frac{P}{U}=\frac{750}{220}\approx 3.4 A\\ R=\frac{U}{I}=\frac{220}{3.4}\approx54.7 \Omega[/tex]

Answer Link

Other Questions

A software designer is mapping the streets for a new racing game. All of the streets are depicted as either perpendicular or parallel lines. The equation of the

Find the present value that will grow to [tex]$29,000 if interest is 9% compounded quarterly for 10 quarters. The present value is $[/tex] _______ (Round to th

Read the following lines from "Sonnet 100" by William Shakespeare:Where art thou, Muse, that thou forget'st so long To speak of that which gives thee all thy m

46. Which of the following is a transmissible disease?A. CancerB. DiabetesC. Food poisoningD. Scurvy47. The following are examples of dry dehiscent fruits excep

El profesor José contrató a un albañil para crear cuatro paredes que miden [tex]$5 \, m$[/tex] de base por [tex]$2 \, m$[/tex] de altura. ¿Cuánto pagó si el cob

Select the correct answer.What is the momentum of a 35-kilogram cart moving at a speed of 1.2 meters/second?A. 42 kilogram meters/secondB. 70 kilogram meters/se

What is the first step when factoring the trinomial [tex]a x^2+b x+c[/tex]?A. List the factors of the constant term. B. Factor the simplified trinomial. C. Lo

Answer for cooperative trees

De las siguientes expresiones, ¿cuál representa el enunciado «Si el [tex]$5 \%$[/tex] de un número se resta del mismo número, el resultado es [tex]$342$[/tex]»?

Discuss the implications of encountering the error message "The inputs could not be safely coerced to any supported types according to the casting rule 'safe'"

how did the aztecs live?

why do many islands in the south pacific lack an adequate standard of living

Are there less than 1 million, exactly 1 million, or greater than 1 million milligrams in 1 kilogram?Explain how u know?

A statement which directly reveals its meaning is implicit implied explicit exposed

Mrs. Wilkinson can buy a 20-ounce box of cereal for $3.60 or a 28-ounce box of cereal for $4.20. Which is the better buy? Explain your reasoning

what is the 200th odd number

State the excluded values for each. 60x^3/12x

What is an economic system??

what is the history of baking in the philippines?

Why does the family decide to leave the beach and find a new place to live on the island? A. Fritz says that he has found a nicer place inland with more plants