Get premium membership and access questions with answers, video lessons as well as revision papers.

An electric heater running on 240 V mains has a current of 2.5 A. (a) What is its power rating? (b) What is the resistance...

      

An electric heater running on 240 V mains has a current of 2.5 A. (a) What is its power rating? (b) What is the resistance of its element?

  

Answers


Mutiso
a) Power = V I = 240 × 2.5 = 600 W. Rating is 600 W, 240 V.
b) Power = V / R = 600 W. R = V / I. R = 240 / 2.5 = 96${\Omega}$.
Mutiso answered the question on October 16, 2018 at 18:06


Next: Combine the pair of sentences to make one sentence using an adjective clause. The first one has been done for you.
Previous: An electric kettle is rated at 2,500 W and uses a voltage of 240 V. (a) If electricity costs Ksh 1.10 per kWh, what is...

View More Physics Questions and Answers | Return to Questions Index


Learn High School English on YouTube

Related Questions