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प्रश्न
Name any two appliances which work under the principle of heating effect of current.
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उत्तर
The principle of all electric heating appliances like iron box, water heater, toaster etc. work under the principle of heating effect of current.
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संबंधित प्रश्न
Compute the heat generated while transferring 96000 coulomb of charge in one hour through a potential difference of 50 V.
Name any two effects of electric current.
An electric room heater draws a current of 2.4 A from the 120 V supply line. What current will this room heater draw when connected to 240 V supply line?
A resistance of 25 Ω is connected to a 12 V battery. Calculate the heat energy in joules generated per minute.
How much heat will an instrument of 12 W produce in one minute if it is connected to the heat produced by it?
The heat produced by passing an electric current through a fixed resistor is proportional to the square of:
(a) magnitude of resistance of the resistor
(b) temperature of the resistor
(c) magnitude of current
(d) time for which current is passed
Which electric heating device in your home do you think have resistors which control the flow of electricity?
The electricity bill specifies the usage in _______.
Write scientific reason.
A coil made up of alloy Nichrome is used in the electric heater cooker as a resistor.
An electric kettle of 2 kW is used for 2h. Calculate the energy consumed in
- kilowatt hour and
- joules.
