Advertisements
Advertisements
प्रश्न
Find the effective resistance in the following circuit diagrams (Fig.):
Advertisements
उत्तर
(b) In the given network, the parallel combination of resistors 40 Ω and 120 Ω is connected in series with the 10 Ω and 20 Ω resistors.
:. Resistance in para!! el is:
`1/"R"_"P" = 1/40 + 1/120 = 4/120 = 1/30`
.·. `"R"_"p"` =3Ω
Effective resistance between P and Q is
R = 10 + 30 + 20 = 60 Ω
APPEARS IN
संबंधित प्रश्न
One coulomb of charge flows through any cross-section of a conductor in 1 second. What is the current flowing through the conductor?
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.
Define the following:
Semiconductors
Calculate the current through a 60 W lamp rated 250 V. If the line voltage falls to 200 V, how is power consumed by the bulb affected?
An electrical appliance is rated at 1000 KVA, 220V. If the appliance is operated for 2 hours, calculate the energy consumed by the appliance in: (i) kWh (ii) joule.
Which of the following represents voltage?
