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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. (B) in Which Circuit, If One Bulbs Be Brighter? - Science

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प्रश्न

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. 

(b) In which circuit, if one bulbs be brighter?

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उत्तर

(b) Parallel circuit

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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 8.2

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संबंधित प्रश्न

What does an electric circuit mean?


Which of the two is connected in series : ammeter or voltmeter?


What Makes an Electric Current Flow in a Wire?


A 5 V battery is connected to two 20 Ω resistors which are joined together in series.

(a) Draw a circuit diagram to represent this. Add an arrow to indicate the direction of conventional current flow in the circuit.
(b) What is the effective resistance of the two resistors?
(c) Calculate the current that flows from the battery?
(d) What is the p.d. across each resistor?


Consider the circuit given below: 

 

(a) In which circuit are the lamps dimmest?
(b) In which circuit or circuits are the lamps of equal brightness to the lamps in circuit (i)?
(c) Which circuit gives out the maximum light?  


The lamps in a house hold circuit are connected in parallel because:

(a) this way they required less current
(b) if one lamp fails the others remain lit
(c) this way they require less power
(d) if one lamp fails the other also fail


How does the heat H produced by a current passing through a fixed resistance wire depend on magnitude of current I?


A cell supplies a current of 1.2 A through two 2 Ω resistors connected in parallel. When the resistors are connected in series, it supplies a current of 0.4 A. Calculate:

(i) the internal resistance and (ii) e.m.f. of the cell. 


Name the physical quantity which is measured by an ammeter.

Explain the meaning of the statement 'the current rating of a fuse is 5 A'.

'A fuse is rated 8 A'. Can it be used with an electrical appliance of rating 5 kW, 200 V?

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 ...........


Three fuses available are rated at 2 A, 10 A and 13 A. Which fuse would you chose for an electric wire rated at 3 kW, 250 V? Show how you arrived at your answer.

What is meant by the term 'electromotive force' of a cell?

How can you convert a moving coil galvanometer into ammeter and voltmeter?

Calculate the current through a 60 W lamp rated 250 V. If the line voltage falls to 200 V, how is power consumed by the bulb affected?


At the time of short circuit, the electric current in the circuit ______.


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?


Define the following:

Conventional current


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