मराठी

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?

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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. 

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

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उत्तर

(a) The parallel circuit will have the highest voltage across each bulb.

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पाठ 1: Electricity - Exercise 6

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संबंधित प्रश्‍न

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


Fill in the folloing blank with suitable words:  

 Current is measured in ............... using an ............... placed in ............... in a circuit.


What is an electric current?


 Which instrument is used to measure electric current? How should it be connected in a circuit?


A student made an electric circuit shown here to measure the current through two lamps.

Are the lamps in series or parallel?  

(a) Are the lamps in series or parallel?
(b) The student has made a mistake in this circuit. What is the mistake?
(c) Draw a circuit diagram to show the correct way to connect the circuit. Use the proper circuit symbols in your diagram. 


The circuit diagram given below shows the combination of three resistors R1, R2 and R3

  

Find :
(i) total resistance of the circuit.
(ii) total current flowing in the circuit.
(iii) the potential difference across R1.

 

 


A p.d. of 6 V is applied to two resistors of 3 Ω and 6 Ω connected in parallel. Calculate:

(a) the combined resistance
(b) the current flowing in the main circuit
(c) the current flowing in the 3 Ω resistor. 

  


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?


What type of electricity is supplied to us at houses?

Define the following:

Semiconductors


Two cells each having an e.m.f. of 2 V and an internal resistance of 2Ω are
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Quantity Unit

(a) Electrical potential Volt

( b) Resistance

( c) Power

( d) Energy

( e) Resistivity

Volt

........

..........

............

..............


Describe two experiments to illustrate the production of electric current by electromagnetic induction. State the laws which determine the direction and magnitude of the induced current.

Tick (✓) the correct choice among the following :

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(b) Express the power P in terms of current and resistance explaining the meanings of symbols used there in.


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Fill in the blank :

1 mA = ............................. A.


State the conditions for the flow of charge in a circuit from one point to the other.


Which of the following represents voltage?


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