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प्रश्न
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उत्तर
Given power P = 3k W = 3000 W, Voltage = 250 V
We know that, P =VI
`"I" = "P"/"V" = 3000/250 = 12 "A"`
Thus am aximum of 12 A current can pass through the electric wire
and a fuse of rating 13 A should be used with it
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संबंधित प्रश्न
Which instrument is used to measure electric current? How should it be connected in a circuit?
A switch must be connected in:
(a) Live wire (b) neutral wire
(c) earth wire (d) either earth or neutral wire
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Explain with the help of a diagram how does 'short circuiting' occur in an electric kettle.
An electric bulb is rated '100 W, 250 V'. How much current will the bulb draw if connected to a 250 V supply?
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Problems for practice:
If 5A current flows through a circuit, then convert the current in terms of microampere?
A charge of 400C flows through a conductor for 13 minutes and 20 seconds. Find the magnitude of the current flowing through the conductor.
