Question

take some electricity bills. find out how the amount on the bill has been calculated. Represent this calculation using a linear equation.

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Answer 1

How is an electricity bill calculated using kVA?

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Calculation of electricity bill :—

Let the per unit cost of electricity bill is rupee 7/-.

Unit consumption in your house will be determined by a specific meter .

Consumption of one unit causes approximately 139 revolution of soft magnetic disc of an analog meter .

Energy consumed by the equipments is denoted by kWh.

1kWh is one unit = consuming 1000 watt for 1 hour..

Power consumed by the equipments is noted as kW.

Active power or the true power is measurable, unit is kW .

Now kVA is the apparent power = kW/ cos (phi).

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Answer 2

Step-by-step explanation:

Answer:

80

Step-by-step explanation:

\begin{gathered} 100-[90-{80-(70-10-50)}] \\ = 100-[90-{80-10}] \\ = 100-[90-70] \\ 100 - 20 = 80\end{gathered}