Advertisements
Advertisements
प्रश्न
If you were going to connect two light bulbs to one battery, would you use a series or a parallel arrangement? Why? Which arrangement takes more current from the battery?
Advertisements
उत्तर
Since every lightbulb in a parallel circuit receives the same voltage as the battery, I would choose to utilize a parallel arrangement. Additionally, if a flaw causes one light to stop glowing, the other bulb keeps glowing. This guarantees that even in the event of a single bulb failure, the circuit will continue to function. Because the parallel design has a lower equivalent resistance than a series arrangement, it pulls more current from the battery. Ohm's Law (I = V/R) states that a stronger current from the same voltage source is produced by a lower resistance.
APPEARS IN
संबंधित प्रश्न
Fill in the folloing blank with suitable words:
A current is a flow of ............... .For this to happen there must be a ............... circuit.
Which is the better way to connect lights and other electrical appliances in domestic wiring: series circuits or parallel circuits? why?
Draw a circuit diagram showing two electric lamps connected in parallel together with a cell and a switch that works both lamps. Mark an â’¶ on your diagram to show where an ammeter should be placed to measure the current.
Using the circuit given below, state which of the following statement is correct?

(a) When S1 and S2 are closed, lamps A and B are lit.22
(b) With S1 open and S2 closed, A is lit and B is not lit.
(c) With S2 open and S1 closed A and B are lit.
(d) With S1 closed and S2 open, lamp A remains lit even if lamp B gets fused.
An electric bulb is rated as 10 W, 220 V. How many of these bulbs can be connected in parallel across the two wires of 220 V supply line if the maximum current which can be drawn is 5 A?
Which effect of current is utilised in an electric light bulb?
Find the effective resistance in the following circuit diagrams (Fig.):

Name the principle on which a transformer works.
Tick (✓) the correct choice among the following :
(a) A strong short bar magnet is dropped into a solenoid connected to a
galvanometer as shown in fig . The galvanometer shows a deflection to the left when the current in the coil as seen from above is counter clockwise. Which one of the following shows the correct deflection of the galvanometer when the magnet is at posi tions A, Band C.
An electric bulb is marked '100 W, 250 V'. What information does this convey?
An electric bulb is rated 250 W, 230 V.
- the energy consumed in one hour, and
- the time in which the bulb will consume 1.0 kWh energy when connected to 230 V mains.
A bulb is connected to a battery of p.d. 4 V and internal resistance 2.5 Ω . A steady current of 0.5 A flows through the circuit. Calculate:
The total energy supplied by the battery in 10 minutes
State expression for Cells connected in series.
A current of 1 A is drawn by a filament of an electric bulb. Number of electrons passing through a cross section of the filament in 16 seconds would be roughly
Problems for practice:
If 5A current flows through a circuit, then convert the current in terms of microampere?
Electric current passes through a metallic conductor due to the movement of ______.
Assertion (A): Electric current will not flow between two charged bodies when connected if their charges are the same.
Reason (R): Current is the rate of flow of charge.
