Advertisements
Advertisements
Question
A geyser is rated 1500 W, 250 V. This geyser is connected to 250 V mains. Calculate:
- The current drawn,
- The energy consumed in 50 hours, and
- The cost of energy consumed at ₹ 4.20 per kWh.
Advertisements
Solution
Given,
Power of geyser, P = 1500 W
Voltage, V = 250 V
- Current, I = `"P"/"V"`
I = `1500/250`
= 6 A - Time, t = 50 h
Energy, E = P × t
= 1500 × 50
= 75000 Wh
= 75 kWh - Cost per unit of energy = Rs 4.20
Cost for 75 kWh of energy = 4.20 × 75
= ₹ 315
APPEARS IN
RELATED QUESTIONS
Draw the electrical symbols of the following components and state its use
Wire crossing
Draw a circuit diagram to show how two 4 V electric lamps can be lit brightly from two 2 V cells.
Ten bulbs are connected in a series circuit to a power supply line. Ten identical bulbs are connected in a parallel circuit to an identical power supply line.
(c) In which circuit, if one bulb blows out, all other will stop glowing?
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?
Water : pipe :: Electric current : ______.
An ammeter is always placed in parallel with the circuit.
