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प्रश्न
One unit of electrical energy consumed is equal to 1000 kilowatt-hour.
विकल्प
True
False
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उत्तर
One unit of electrical energy consumed is equal to 1000 kilowatt-hour - true.
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संबंधित प्रश्न
Draw the electrical symbols of the following components and state its use
Wire crossing
The atoms of copper contain electrons and the atoms of rubber also contain electrons. Then why does copper conduct electricity but rubber does not conduct electricity?
A current of 4 A flows around a circuit for 10 s. How much charge flows past a point in the circuit in this time?
Fill in the folloing blank with suitable words:
A current is a flow of ............... .For this to happen there must be a ............... circuit.
Which instrument is used to measure electric current? How should it be connected in a circuit?
How do you think the brightness of two lamps arranged in parallel compares with the brightness of two lamps arranged in series (both arrangements having one cell)?
State the S.I. unit of current.
The following table shows the current in Amperes and potential differences in Volts.
- Find the average resistance.
- What will be the nature of the graph between the current and potential difference? (Do not draw a graph.)
- Which law will the graph prove? Explain the law.
| V (volts) | I (amp) |
| 4 | 9 |
| 5 | 11.25 |
| 6 | 13.5 |
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.
Tick (✓) the correct choice among the following :
Which of the following changes would enable a millimeter to be used as a
direct current ammeter reading upto 1 A?
