- Main sub-station
- City sub-station
- Grid sub-station
- Electric pole
A bulb of resistance 1 ohm is connected across a battery of 10 V. Find the power consumed.
If 100 J is the energy required for an appliance to run per second, then what is the power consumed by it in watts, if it operates at 220V?
Mathematical expression for electric power(P), where I is current and R is resistance, is;
Power is defined as work done per unit
Which unit among the following can represents electric power?
None of these
When a bulb of resistance 1 Ω is connected across a battery, it draws a constant power of 400 W. What is the total power drawn when 4 such bulbs are connected in series across the same battery?
An electric bulb is rated 220 V and 100 W. When it is operated at 110 V, the power consumed will be
- 100 W
- 75 W
- 50 W
- 25 W
The current through a 10 V tungsten filament lamp connected to a 10 V source of negligible resistance is 2 A. Calculate the electrical energy (in kWh) consumed in 5 hours.