Advertisements
Advertisements
प्रश्न
What is the equivalent resistance between the points X and Y for the given network?
Advertisements
उत्तर
An equivalent circuit for the combination


`1/"R" = 1/"R"_1 + 1/"R"_2 + 1/"R"_3`
R1 = 5 + 3 = 8 Ω
R2 = 8 Ω
R3 = 1 + 3 = 4 Ω
`1/"R" = 1/8 + 1/8 + 1/4`
`1/"R" = (1 + 1 + 2)/8`
`= 4/8 = 1/2`
R = 2 Ω
संबंधित प्रश्न
The substance having infinitely high electrical resistance is called:
(a) conductor
(b) resistor
(c) superconductor
(d) insulator
Name the material which is the best conductor of electricity.
How does the resistance of a pure metal change if its temperature decreases?
What potential difference is needed to drive a current o f 1 A through a 5 Ω resistor?
To increase the effective resistance in a circuit, the resistors are connected in _______________ .
Two bulbs of 100 W and 40 W are connected in series. The current through the 100 W bulb is 1 A. The current through the 40 W bulb will be ______.
Calculate the equivalent resistance between the points A and B for the following combination of resistors:
A metal wire of resistance 6 Ω is stretched so that its length is increased to twice its original length. Calculate its new resistance.
Show how you would connect three resistors, each of resistance 6 Ω, so that the combination has a resistance of 4 Ω.
