Advertisements
Advertisements
Question
When a current I flows through a wire of resistance R for time t then the electrical energy produced is given by ______.
Options
I2Rt
IR2t
IRt
IRt2
Advertisements
Solution
When a current I flows through a wire of resistance R for time t then the electrical energy produced is given by I2Rt.
Explanation:
Due to joules law of heating.
APPEARS IN
RELATED QUESTIONS
State four most common electrical appliances based on heating effect of electric current. Why do we use finely heated platinum wire in surgery?
What is nichrome? State its one use.
A resistance of 25 Ω is connected to a 12 V battery. Calculate the heat energy in joules generated per minute.
In an electric bulb, coil of _______ metal is used.
Name some devices that run using heat effect of electric current
Name any two appliances which work under the principle of heating effect of current.
Which of the following gases are filled in electric bulbs?
Can we use the same fuse in a geyser and a television set? Explain.
It would cost a man Rs. 3.50 to buy 1.0 kW h of electrical energy from the Main Electricity Board. His generator has a maximum power of 2.0 kW. The generator produces energy at this maximum power for 3 hours. Calculate how much it would cost to buy the same amount of energy from the Main Electricity Board.
An electrochemical cell converts ______ energy into ______ energy.
