Advertisements
Advertisements
प्रश्न
2Ω resistor A, 1Ω resistor B and 4Ω resistor C are connected in parallel. The combination is connected across a 2V battery of negligible resistance. Draw the diagram of the arrangement and calculate:
(i) The current in each resistor A and C,
(ii) The current through battery.
Advertisements
उत्तर
The diagram of the arrangement is shown in given figure.
(i) The current in resistor A is I1 = `"V"/"R"_1 = 2/2 = 1.0`A
The current in resistor B is I2 = `"V"/"R"_2 = 2/1 = 2.0`A
The current in resistor B is I3 = `"V"/"R"_3 = 2/4 = 0.5`A
(ii) The current through battery
I = I1 + I2 + I3
I = 1.0 + 2.0 + 0.5
= 3.5 Ampere.
संबंधित प्रश्न
Name the material which is used for making the heating element of an electric iron.
Calculate the resistance of an aluminium cable of length 10 km and diameter 2.0 mm if the resistivity of aluminium is 27 × 10−8 Ωm.
State how are the two resistors joined with a battery when same current flows in each resistor.
Name the material of wire used for making standard resistances. Give a reason.
How does the resistivity of a semiconductor depend on temperature?
Four resistances of 2.0Ω each are joined end to end, to form a square ABCD. Calculate the equivalent resistance of the combination between any two adjacent comers.
Three resistors of 6Ω, 3Ω and 2Ω are connected together so that their total resistance is greater than 6Ω but less than 8Ω Draw a diagram to show this arrangement and calculate its total resistance.
What is the equivalent resistance between the points X and Y for the given network?
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 ______.
