Advertisements
Advertisements
प्रश्न
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 ______.
पर्याय
0.4 A
0.6 A
0.8 A
1 A
Advertisements
उत्तर
Two bulbs of 100 W and 40 W are connected in series. The current through the 100 W bulb is 1A. The current through the 40W bulb will be 1 A.
Explanation:
In a series circuit, there is only one path for the electric charge to flow. Because of this, the current remains the same at every point in the circuit, regardless of the resistance or power rating of the individual components.
- Series Connection Rule: Itotal = I1 = I2 = ... = In.
- Since the 100 W bulb and the 40 W bulb are connected in series, the same flow of electrons must pass through both.
- If the current through the 100 W bulb is measured as 1 A, the current through the 40 W bulb must also be 1 A.
APPEARS IN
संबंधित प्रश्न
A battery of 9 V is connected in series with resistors of 0.2 Ω, 0.3 Ω, 0.4 Ω, 0.5 Ω and 12 Ω, respectively. How much current would flow through the 12 Ω resistor?
Give one example to show how the resistance depends on the nature of material of the conductor.
V = IRTwo resistances X and Y are connected turn by turn : (i) in parallel, and (ii) series. In which case the resultant resistance will be less than either of the individual resistances?R = R1+ R2+ R3
Calculate the combined resistance in each case:
Why are thick copper wires used as connecting wires?
How does the resistivity of a semiconductor depend on temperature?
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.
Calculate the value of the resistance which must be connected to a 15 ohm resistance to provide on effective resistance of 6 ohm.
The resistance of the hot filament of the bulb is about 10 times the cold resistance. What will be the resistance of 100 W-220 V lamps, when not in use?
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 ______.
