Advertisements
Advertisements
प्रश्न
Calculate the effective resistance between the points A and B in the network shown below in Figure 8.45
Advertisements
उत्तर
In the diagram, 2Ω and 1Ω resistances are in series. The equivalent resistance of the arm R' = 2 + 1 = 3 Ω
Between the points A and B, the equivalent resistance R' (= 3 Ω) is in parallel with 1.5 Ω
Hence, total effective resistance between A and B is
R = `(3 xx 1.5)/(3 + 1.5) = 4.5/4.5 = 1.0 Ω`
संबंधित प्रश्न
Which of the following units could be used to measure electric charge?
(a) ampere
(b) joule
(c) volt
(d) coulomb
In the circuit shown below, the voltmeter reads 10 V.
(a) What is the combined resistance?
(b) What current flows?
(c) What is the p.d. across 2 Ω resistor?
(d) What is the p.d. across 3 Ω resistor?
Tick(✓) the correct choice in the following:
24 watt, 12 volt head lamp is fully lit by connecting it to a 12 volt
battery. The working resistance of the lamp is
Define the following:
Electromotive force
Two cells each having an e.m.f. of 2 V and an internal resistance of 2Ω are
connected (a) In series, and ( b) In para 1le l as shown in fig. . What is the
current flowing through the cir cu it in each_ case?
What would be the danger involved in replacing a blown fuse with the one which would carry a large current?
A bulb of 40 W is used for 12.5 h each day for 30 days. Calculate the electrical energy consumed.
An ammeter is always placed in parallel with the circuit.
