Energy spent in kilowatt-hour -volt -1000-

The correct option is A ampere, hourEnergy = Work done (in Watt) = #160; Power× time = Voltage × current × time Work done (in kilowatt) = (Voltage× ...

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Byju's Answer

Standard XII

Chemistry

Units and Dimensions

Energy spent ...

Question

Energy spent in kilowatt-hour $= \frac{v o l t \times . . . . . . . . . . . \times . . . . . .}{1000}$ .

ampere, hour

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ampere,min

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joule,hour

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Solution

The correct option is A ampere, hour
Energy = Work done $(i n W a t t) = P o w e r \times t i m e = V o l t a g e \times c u r r e n t \times t i m e$

$W o r k d o n e (i n k i l o w a t t) = \frac{(V o l t a g e \times c u r r e n t \times t i m e)}{1000}$

$O r w o r k d o n e (i n k i l o w a t t) = \frac{(V o l t \times a m p e r e \times h o u r)}{1000}$

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Similar questions

Q. Number of kilowatt-hours =

\frac{v o l t \times a m p e r e \times t i m e}{1000}

. Then:

Q. Number of kilowatt-hours =

\frac{v o l t \times a m p e r e \times . . . . . . . . . . .}{1000}

Q. An electric heater of power

1000

watt is joined to electric mains of

250

volt. Calculate:
(i) Electric current flowing through heater
(ii) Resistance of heater wire
(iii) Thermal energy produced per minute by heater
(iv) The electric energy spent in Kilowatt-hour by heater in

2

hours.

Q. The commercial unit of energy is :

(a) watt
(b) watt-hour
(c) kilowatt-hour
(d) kilowatt

Q. Unit of electric power may also be expressed in

(A) volt ampere
(B) kilowatt hour
(C) watt second

(D) joule second

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Energy spent in kilowatt-hour =volt×...........×......1000.

The correct option is A ampere, hourEnergy = Work done (in Watt)=Power×time=Voltage×current×timeWork done (in kilowatt)=(Voltage×current×time)1000Or work done (in kilowatt)=(Volt×ampere×hour)1000

Energy spent in kilowatt-hour $= \frac{v o l t \times . . . . . . . . . . . \times . . . . . .}{1000}$ .