An electric iron a, resistance 20 Ω takes a current of 5 A Calculate the heat developed in 30 s.
An electric iron a, resistance 20 Ω takes a current of 5 A Calculate the heat developed in 30 s.
Pawan Prajapati , 5 Years ago
Grade 12
10 grade science> An electric iron a, resistance 20 Ω takes...
1 AnswersHarshit Singh
Dear Student
Resistance of the iron = 20 ohm
Current = 5 amp
Time = 30 seconds
Heat produced = I^2 RT
= 52 × 20 × 30
= 15000 joules or 15 KJ
Thanks
Resistance of the iron = 20 ohm
Current = 5 amp
Time = 30 seconds
Heat produced = I^2 RT
= 52 × 20 × 30
= 15000 joules or 15 KJ
Thanks
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Other Related Questions on 10 grade science
What type of questions asked from the lesson of magnetic effect of electric current
What type of questions asked from the lesson of magnetic effect of electric current
10 grade science
1 Answer Available
Last Activity: 5 Months ago
Wavelength of green light is
A) 400-450 nm
B) 500-550 nm
C) 660-720 nm
D) 720-800 nm
Wavelength of green light is
A) 400-450 nm
B) 500-550 nm
C) 660-720 nm
D) 720-800 nm
10 grade science
1 Answer Available
Last Activity: 7 Months ago
What is the difference between anaerobic & aerobic respiration? Name some organism that uses the aerobic mode of respiration?
What is the difference between anaerobic & aerobic respiration? Name some organism that uses the aerobic mode of respiration?
10 grade science
1 Answer Available
Last Activity: 8 Months ago
What are the main components of our environment? Explain each of them briefly.
What are the main components of our environment? Explain each of them briefly.
10 grade science
1 Answer Available
Last Activity: 8 Months ago
What are examples of hydrotropism plants?
What are examples of hydrotropism plants?
10 grade science
1 Answer Available
Last Activity: 8 Months ago