Advertisements
Advertisements
प्रश्न
Calculate the equivalent resistance between A and B in the adjacent diagram.
Advertisements
उत्तर
R1 = 3 + 2 = 5 ohm
R2 = 30 W
R3 = 6 + 4 = 10 ohm
`"R"_1 , "R"_2 and "R"_3 `are connected in parallel
`1/"R" = 1/"R"_1 + 1/"R"_2 + 1/"R"_3`
`=1/5+1/30+1/10=10/30`
R = 3 ohm
संबंधित प्रश्न
A car headlight bulb working on a 12 V car battery draws a current of 0.5 A. The resistance of the light bulb is:
(a) 0.5 Ω
(b) 6 Ω
(c) 12 Ω
(d) 24 Ω
What happens to the other bulbs in a parallel circuit if one bulb blows off?
Draw a schematic diagram of an electric circuit consisting of a battery of two cells each of 1.5 V, 5 Ω, 10 Ω and 15 Ω resistors and a plug key, all connected in series.
A bulb marked 12 V, 24 W operates on a 12 volt car battery for 20 minutes. Calculate:
(i) The current flowing through it, and
(ii) The energy liberated.
Tick(✓) the correct choice in the following:
When the length of a conductor is doubled the resistance of the conductor
will
What is the criteria for selecting a fuse wire?
1 kWh = `(1 "volt" xx 1 "ampere" xx "_________")/1000`
Small amounts of electrical current are measured in milliampere (mA). How many milliampere are there in 0.25 A ?
MCB is used to protect household electrical appliances.
