Question

A Geyser is rated 1500W. 250V. It is connected to 250V mains. Calculate :- i.Current drawn
ii. Energy consumed in 50 hours
iii.Cost of energy consumed of 2.20` per unit.

Answer 1

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Answer 2

Answer:

The current,energy consumed in 50 hours and total cost are 6 A, 75 kW-h and 165 Rs.

Explanation:

Given that,

Power P = 1500 W

Voltage V = 250 V

Time t = 50 hours

(I). We need to calculate the current

The power is defined as,

$P =VI$

Where, P = Power

V = voltage

I = current

The current is equal to the power divided by the voltage.

$I = \dfrac{P}{V}$

Put the value in to the formula

$I = \dfrac{1500}{250}$

$I =6\ A$

(II). We need to calculate the energy consumed in 50 hours

The energy is defined as,

$E = P\times T$

$E = V\times I\times T$

Where, T = time

Put the value into the formula

$E = 250\times6\times50$

$E =75000\ W-h$

$E =75\ kW-h$

(III). The cost of energy consumed of 2.20 per unit.

We need to calculate the total cost

The total cost = $2.20\times75$

Total cost =165 Rs.

Hence, The current,energy consumed in 50 hours and total cost are 6 A, 75 kW-h and 165 Rs.