Advertisements
Advertisements
प्रश्न
Find the equivalent resistance between points A and B.
Advertisements
उत्तर
Let RP be the equivalent resistance of the resistors 12 Ω, 6 Ω and 4 Ω connected in parallel. Hence, we have
`1/R_p = 1/12 + 1/6 + 1/4`
`= (1+ 2+3)/12 = 1/2`
Rp = 2Ω
Therefore, the equivalent resistance of the circuit is
2Ω + Rp + 5Ω = 2Ω + 2Ω + 5Ω = 9Ω
Thus, the equivalent resistance between points A and B is 9Ω .
APPEARS IN
संबंधित प्रश्न
Why is the series arrangement not used for domestic circuits?
Find the equivalent resistance between A and B
When a 4 Ω resistor is connected across the terminals of a 12 V battery, the number of coulombs passing through the resistor per second is:
(a) 0.3
(b) 3
(c) 4
(d) 12
Name the material which is the best conductor of electricity.
Calculate the combined resistance in the given case:
To increase the effective resistance in a circuit, the resistors are connected in _______________ .
State expression for Resistance connected in series.
What should be the length of a nickel wire of area of cross-section 3 mm2 used for making a rheostat of 750 ohm? (ρ of nickle = 0.069 Ohm mm2/m)
In an electrical circuit, two resistors of 2 Ω and 4 Ω respectively are connected in series to a 6 V battery. The heat dissipated by the 4 Ω resistor in 5 s will be ______.
