christabella677 christabella677
  • 10-01-2021
  • Physics
contestada

(6)
A 100 W heater is connected to a 240 V mains supply. Calculate the:
current drawn;
resistance of the hheater.I want to know how to go about it

Respuesta :

Phobic111
Phobic111 Phobic111
  • 10-01-2021

Answer:

Current drawn = 0.417 A (rounded to 3 significant figures)

Resistance = 576Ω (rounded to 3 significant figures)

Explanation:

Current = Power ÷ Voltage

Current = 100W / 240V

∴ Current = 0.416666666.... = 0.417A

Resistance = Voltage ÷ Current

Resistance = 240 ÷ 0.417

∴ Resistance = 575.539 = 576Ω

Answer Link

Otras preguntas

The circumference of Circle K is π. The circumference of Circle L is 4 π. a. What is the ratio of their circumferences? of their radii? of their areas? b. What
Which of the following words is opposite in meaning to careless? dramatically harmful cautious obvious
in what type of organization is sequence extremely important ?
What is the value of x?
Use the future progressive form of march to complete the following sentence. They _____ to show their support.
Hexagons abcdef and mnopqr are similar. Which statement of proportionality is not true?
What did einstein believe regarding human perception
List of martial arts conor mcgregor knows
Luis earns a base salary of $150.00 every week with an additional 14% commission on everything he sells. If Luis sold $6,050.00 worth of items last week, wh
What is the purpose of this weeks lab? a. to investigate the human effects on the carbon cycle b. to investigate the human effects on the atmosphere c. to in