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प्रश्न
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उत्तर
We know that,
P=VI
I = `"P"/"V" = (3 xx 1000)/250` = 12A
Thus, it can be used in a circuit which contains a 13A fuse.
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संबंधित प्रश्न
<p> Define the unit of electric current (or Define ampere).
A student made an electric circuit shown here to measure the current through two lamps.
Are the lamps in series or parallel?
(a) Are the lamps in series or parallel?
(b) The student has made a mistake in this circuit. What is the mistake?
(c) Draw a circuit diagram to show the correct way to connect the circuit. Use the proper circuit symbols in your diagram.

Calculate the equivalent resistance between A and B in the adjacent diagram.

In the network shown in the following adjacent Figure, calculate the equivalent resistance between the points.
- A and B
- A and C

Two resistors of 2.0 Ω and 3.0 Ω are connected (a) in series (b) in parallel, with a battery of 6.0 V and negligible internal resistance. For each case draw a circuit diagram and calculate the current through the battery.
An electric oven is rated as 1.5 kW, 250 V. If it is connected to a 250 V mains, calculate the
(a) Current drawn,
(b) Energy consumed in 20 hours,
(c) Cost of energy consumed in 20 hours at the rate of Re. 1 per unit.
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.
