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Standard X

Physics

Household Electrification

Calculate the...

Question

Calculate the energy consumed by $2 k W$ heater used for $1 h r$ every day in a period of $30 days$ .

60 units

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120 units

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15 units

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30 units

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Solution

The correct option is A $60 units$
$1 k w h$ represented as one unit.
Given data:
Power $(P) = 2 k W$
Total time $(T)$ :
$T = 1 \times 30 h$
$\Rightarrow T = 30 h$
Now, total consuption( $E$ ) :
$E = P T$
$\Rightarrow E = 2 \times 30 k w h$
$\Rightarrow E = 60 u n i t$

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Calculate the energy consumed by 2 kW heater used for 1 hr every day in a period of 30 days.

The correct option is A 60 units1 kwh represented as one unit.Given data:Power(P)=2 kWTotal time(T):T=1×30 h⇒T=30 hNow, total consuption(E) :E=PT⇒E=2×30 kwh⇒E=60 unit

Calculate the energy consumed by $2 k W$ heater used for $1 h r$ every day in a period of $30 days$ .

The correct option is A $60 units$
$1 k w h$ represented as one unit.
Given data:
Power $(P) = 2 k W$
Total time $(T)$ :
$T = 1 \times 30 h$
$\Rightarrow T = 30 h$
Now, total consuption( $E$ ) :
$E = P T$
$\Rightarrow E = 2 \times 30 k w h$
$\Rightarrow E = 60 u n i t$