Advertisements
Advertisements
प्रश्न
Tick(✓) the correct choice in the following:
In the circuit shown in the following fig, the e.m.f. of the cell is 4 volts, the current
flowing through the resistor is

पर्याय
`2/3`A
2 A
1`1/2` A
1`1/3` A
4A
Advertisements
उत्तर
`2/3`A
APPEARS IN
संबंधित प्रश्न
The commercial unit of energy is :
(a) watt
(b) watt-hour
(c) kilowatt-hour
(d) kilo-joule
State the S.I. unit of electrical power.
Name the physical quality which is measured in
(i) Kw (ii) kWh
When a current I flows through a resistance R for time t, the electrical energy spent is given by:
(a) IRt (b) I²Rt (c) `IR^2t` (d) `I^2R ⁄t`
Two resistors A and B of resistance 4 Ω and 6 Ω respectively are connected in parallel. The combination is connected across a 6 volt battery of negligible resistance. Calculate: (i) the power supplied by the battery, (ii) the power dissipated in each resistor.
What are the two main systems of wiring commonly used in houses? Which of these systems mentioned by you is better and why?
At what voltage is the electric power generated at the generating station? Explain the transmission of this power to your house.
Three 250 W heaters are connected in parallel to a 100 V supply, Calculate total current taken from the supply.
An electric kettle is rated 3kW, 250V. What should be the current capacity of the fuse with it?
A bulb is connected to a battery of e.m.f. 6V and internal resistance 2Ω A steady current of 0.5A flows through the bulb. Calculate the heat energy dissipated in the bulb in 10 minutes.
