What current is taken by $3 k W$ electric geyser working on $240 V$ mains?

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Solution

$P = 3 k W = 3000 W$
$V = 240 V$
$P = V \times I$
$I = P / V$
$= 3000 / 240 = 12.5 A$

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Similar questions

(a) What current is taken by a 3 kW electric geyser working on 240 V mains ?

(b) What size fuse should be used in the geyser circuit ?

The table below shows the current in three different electrical appliances when connected to the 240 V mains supply :

Appliance current

Kettle 8.5 A

Lamp 0.4 A

Toaster 4.8 A

(a) Which appliance has the greatest electrical resistance ? How does the data show this ?

(b) The lamp is connected to the mains supply by using a thin, twin-cored cable consisting of live and neutral wires. State two reasons why this cable should not be used for connecting the kettle to the mains supply.

(d) A man takes the kettle abroad where the mains supply is 120 V. What is the current in the kettle when it is operated from the 120 V supply ?

Q. (a) What current is taken by a 3 kW electric geyser working on 240 V mains?
(b) What size fuse should be used in the geyser circuit?

Q. What is the resistance under normal working conditions of a 240V electric lamp rated at 60W? If 2 suchlamps are connectedin seriesacrossa 240V mains supply explain why each one appearslessbright.

Q. a lamp of 600w -240v is connected to 220v mains ,its resistance is?(ans=96ohms)(current electricity)

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What current is taken by 3 kW electric geyser working on 240 V mains?

P=3kW=3000WV=240VP=V×II=P/V=3000/240=12.5 A

What current is taken by $3 k W$ electric geyser working on $240 V$ mains?

$P = 3 k W = 3000 W$
$V = 240 V$
$P = V \times I$
$I = P / V$
$= 3000 / 240 = 12.5 A$