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Umangi Grover

Asked: October 20, 2020In: Class 10

An electric heater of resistance 8 W draws 15 A from the service mains 2 hours. Calculate the rate at which heat is developed in the heater.

NCERT Solution for Class 10 Science Chapter 12 Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-222 Questions No-17

Umangi Grover

Asked: October 20, 2020In: Class 10

Explain the following

NCERT Solution for Class 10 Science Chapter 12 Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-222 Questions No-18 Explain the following. (a) Why is the tungsten used almost exclusively for filament of electric lamps?

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