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प्रश्न
Explain with the help of a diagram how does 'short circuiting' occur in an electric kettle.
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उत्तर
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संबंधित प्रश्न
Compare how an ammeter and a voltmeter are connected in a circuit.
An electric circuit consisting of a 0.5 m long nichrome wire XY, an ammeter, a voltmeter, four cells of 1.5 V each and a plug key was set up.
(i) Draw a diagram of this electric circuit to study the relation between the potential difference maintained between the points 'X' and 'Y' and the electric current flowing through XY.
Give three reasons why different electrical appliances in a domestic circuit are connected in parallel.
Find the effective resistance in the following circuit diagrams (Fig.):
Find the effective resistance in the following circuit diagrams (Fig.):
The following appliances are to be used on 240 V supply. Calculate the current used by each and say which fuse, 2 amp, 5 amp or 13 amp should be incorporated with each, (i) A television rated at 150 W, (ii) An electric iron rated at 750 W, (iii) An immersion heater rated at 3000 W, (iv) A hair dryer rated at 500 W. How much will it cost to run the television set for 100 days for an average of 4 hours a day at 60 paise per unit?
1 kWh = `(1 "volt" xx 1 "ampere" xx "_________")/1000`
Three heaters each rated 250 W, 100 V are connected in parallel to a 100 V supply of the energy supplied in kWh to the three heaters in 5 hours.
