Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Questions  >  A single-phase 230V, 1 kW heater is connected... Start Learning for Free
A single-phase 230V, 1 kW heater is connected across single-phase 230V, 50 Hz supply through a diode. Calculate power delivered to the heater element.
  • a)
    600W
  • b)
    700W
  • c)
    500W
  • d)
    900W
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A single-phase 230V, 1 kW heater is connected across single-phase 230V...
Heater resistance R =
RMS value of output voltage =
Therefore power absorbed by heater element = = 500W
View all questions of this test
Most Upvoted Answer
A single-phase 230V, 1 kW heater is connected across single-phase 230V...
Calculation of Power Delivered to the Heater Element

Given parameters:
Voltage (V) = 230V
Power (P) = 1 kW = 1000W
Frequency (f) = 50 Hz

1. Calculation of Current
As the heater is connected in series with a diode, only half of the input voltage is available across the heater. Therefore, the effective voltage across the heater is:

Veff = V/2 = 115V

Using Ohm's Law, the current through the heater can be calculated as:

I = P/Veff = 1000/115 = 8.70A

2. Calculation of Power
The power delivered to the heater can be calculated using the formula:

P = Veff x I = 115 x 8.70 = 1000.5W ≈ 500W

Therefore, the power delivered to the heater element is 500W (Option C).
Free Test
Community Answer
A single-phase 230V, 1 kW heater is connected across single-phase 230V...
Calculae rms value of output voltage
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

Question Description
A single-phase 230V, 1 kW heater is connected across single-phase 230V, 50 Hz supply through a diode. Calculate power delivered to the heater element.a)600Wb)700Wc)500Wd)900WCorrect answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about A single-phase 230V, 1 kW heater is connected across single-phase 230V, 50 Hz supply through a diode. Calculate power delivered to the heater element.a)600Wb)700Wc)500Wd)900WCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A single-phase 230V, 1 kW heater is connected across single-phase 230V, 50 Hz supply through a diode. Calculate power delivered to the heater element.a)600Wb)700Wc)500Wd)900WCorrect answer is option 'C'. Can you explain this answer?.
Solutions for A single-phase 230V, 1 kW heater is connected across single-phase 230V, 50 Hz supply through a diode. Calculate power delivered to the heater element.a)600Wb)700Wc)500Wd)900WCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE). Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of A single-phase 230V, 1 kW heater is connected across single-phase 230V, 50 Hz supply through a diode. Calculate power delivered to the heater element.a)600Wb)700Wc)500Wd)900WCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A single-phase 230V, 1 kW heater is connected across single-phase 230V, 50 Hz supply through a diode. Calculate power delivered to the heater element.a)600Wb)700Wc)500Wd)900WCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for A single-phase 230V, 1 kW heater is connected across single-phase 230V, 50 Hz supply through a diode. Calculate power delivered to the heater element.a)600Wb)700Wc)500Wd)900WCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of A single-phase 230V, 1 kW heater is connected across single-phase 230V, 50 Hz supply through a diode. Calculate power delivered to the heater element.a)600Wb)700Wc)500Wd)900WCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A single-phase 230V, 1 kW heater is connected across single-phase 230V, 50 Hz supply through a diode. Calculate power delivered to the heater element.a)600Wb)700Wc)500Wd)900WCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev