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How Do You Think the Brightness of Two Lamps Arranged in Parallel Compares with the Brightness of Two Lamps Arranged in Series (Both Arrangements Having One Cell)? - Science

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प्रश्न

How do you think the brightness of two lamps arranged in parallel compares with the brightness of two lamps arranged in series (both arrangements having one cell)?

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उत्तर

The brightness of two lamps arranged in parallel will be more compared with the brightness of two lamps arranged in series because a parallel circuit offers less resistance.

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अध्याय 1: Electricity - Exercise 6

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लखमीर सिंग Physics (Science) [English] Class 10
अध्याय 1 Electricity
Exercise 6 | Q 16

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

One coulomb charge is equivalent to the charge contained in:

(a) 2.6 × 1019 electrons
(b) 6.2 × 1019 electrons
(c) 2.65 × 1018 electrons
(d) 6.25 × 1018 electrons


In 10 s, charge of 25 C leaves a battery, and 200 J of energy are delivered to an outside circuit a result. 

What current flows from the battery?


What happens to the other bulbs in a series circuit if one bulb blows off?


Ten bulbs are connected in a series circuit to a power supply line. Ten identical bulbs are connected in a parallel circuit to an identical power supply line. 

(a) Which circuit would have the highest voltage across each bulb?


If the current passing through a conductor is doubled, what will be the change in heat produced


Complete the following sentence:

Fuse wire has a ............ Melting point and it is made of an alloy of ......... and if the current in a circuit rises too high, the fuse wire ...........


What is the purpose of a switch in a circuit? Why is the switch put in the live wire?

What should be the current rating of a fuse to be used with an electric appliance of rating 1.5 kW-220 V? How is the fuse connected with the appliance?

What do you mean by 'power-voltage' rating of electrical appliances?

The resistance of 100 W (220 V) bulb is greater than that of 60 W (220 V) bulb. Is it true or false?

What do you mean by direct current?

A wire is passed through a piece of cardboard as shown in fig .. An electric current flows vertically down the wire and then flows back up. The two sections of the write are observed to repel each other.
(a) Wi th the aid of a diagram, describe how you would plot the magnetic field lines on the card .

(b) Sketch the magnetic field patterns around both the sections of the wire. Use your sketch to explain why the two sections repel each other.
(c) The repulsive force between the two sections is small. What changes could be made to increase it?


A geyser is rated 1500 W, 250 V. This geyser is connected to 250 V mains. Calculate:

  1. The current drawn,
  2. The energy consumed in 50 hours, and
  3. The cost of energy consumed at ₹ 4.20 per kWh.

What is meant by internal resistance of a cell?


Define an electric current.


Conventionally, the direction of the current is taken as:


Problems for practice:

If 5A current flows through a circuit, then convert the current in terms of microampere?


For current to flow, one needs art open circuit.


1020 electrons, each having a charge of 1.6 x 10-19 C, flows in a circuit V is 0.1s. What is the current in ampere?


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