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प्रश्न
What is the order of current drawn by appliances connected to the ‘light circuit’ of a household?
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उत्तर
The appliances, connected to the light circuit, are supposed to draw currents of the order of 10A to 5A.
संबंधित प्रश्न
1 calorie = _________ joule.
What is the SI unit of (i) electric energy, and (ii) electric power?
Which of the following is the most likely temperature of the filament of an electric light bulb when it is working on the normal 220 V supply line?
(a) 500°C
(b) 1500°C
(c) 2500°C
(d) 4500°C
The diagram above shows a circuit with the key k open. Calculate :
(i) the resistance of the circuit when the key k is open.
(ii) the current drawn from the cell when the key k is open.
(iii) the resistance of the circuit when the key k is closed.
(iv) the current drawn from the cell when the key k is closed.
Express watt hour and kilowatt hour in joule.
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State other bigger units of electric power and express them in watt.
An electric lamp A of 40 W and another electric lamp B of 100 W are connected to 220 V supply. Calculate the ratio of their filament resistances?
