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
Why is the tungsten used almost exclusively for filament of electric lamps?
What is nichrome? State its one use.
Which of the following characteristic is not suitable for a fuse wire?
(a) thin and short
(b) thick and short
(c) low melting point
(d) higher resistance than rest of wiring
Which metal is used to make the filament of an electric bulb?
Explain the importance/uses of fuse wire.
How can overloading be avoided?
Mark the correct choice
- Assertion: Electric appliances with a metallic body have three wire connections.
- Reason: Three-pin connections reduce the heating of the connecting wires.
An electric kettle consumes 1 kW of electric power when operated at 220 V. A fuse wire of what rating must be used for it?
An electric component used as a safety device is electric circuit is ______.
1 kWh is equal to ______.
