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
If the equivalent resistance is to be increased, then the number of resistances should be connected in
- Series
- Parallel
- Mixed arrangement
- None of the above
Name the material which is the best conductor of electricity.
The diagram below shows part of a circuit:
If this arrangement of three resistors was to be replaced by a single resistor, its resistance should be:
(a) 9 Ω
(b) 4 Ω
(c) 6 Ω
(d) 18 Ω
To increase the effective resistance in a circuit, the resistors are connected in _______________ .
A given metallic wire of resistance R is doubled on itself. What will be its new resistance?
Bends in a rubber pipe reduce the flow of water through it. How would the bands in a wire affect its electric resistance?
Write an expression for calculating electrical power in terms of current and resistance.
Six equal resistors of 1 ohm each are connected to form the sides of a hexagon ABCDEF. Calculate the resistance offered by the combination if the current enters at A and leaves it at D.
Two electric bulbs have resistances in the ratio 1 : 2. If they are joined in series, the energy consumed in them is in the ratio:
