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An Electric Circuit Consisting of a 0.5 M Long Nichrome Wire Xy, an Ammeter, a Voltmeter, Four Cells of 1.5 V Each and a Plug Key Was Set Up. (I) Draw a Diagram of this Electric Circuit to Study the Relation Between the Potential Difference Maintained Between the Points 'X' and 'Y' and the Electric Current Flowing Through Xy - Science

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प्रश्न

An electric circuit consisting of a 0.5 m long nichrome wire XY, an ammeter, a voltmeter, four cells of 1.5 V each and a plug key was set up.

(i) Draw a diagram of this electric circuit to study the relation between the potential difference maintained between the points 'X' and 'Y' and the electric current flowing through XY.

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उत्तर

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अध्याय 1: Electricity - Exercise 3

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लखमीर सिंग Physics (Science) [English] Class 10
अध्याय 1 Electricity
Exercise 3 | Q 19.1

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संबंधित प्रश्न

Which of the following units could be used to measure electric charge?

(a) ampere
(b) joule
(c) volt
(d) coulomb


Fill in the folloing blank with suitable words:

 A current is a flow of ............... .For this to happen there must be a ............... circuit.


Why should the resistance of: 

a voltmeter be very large?


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

What is the p.d. across the battery?


Which statement/statement is/are correct?
1. An ammeter is connected in series in a circuit and a voltmeter is connected in parallel.
2. An ammeter has a high resistance.
3. A voltmeter has a low resistance.

(a) 1, 2, 3
(b) 1, 2
(c) 2, 3
(d) 1


A car headlight bulb working on a 12 V car battery draws a current of 0.5 A. The resistance of the light bulb is:

(a) 0.5 Ω
(b) 6 Ω
(c) 12 Ω
(d) 24 Ω


Three resistors are connected as shown in the diagram.


Through the resistor 5 ohm, a current of 1 ampere is flowing.

(i) What is the current through the other two resistors?
(ii) What is the p.d. across AB and across AC?
(iii) What is the total resistance


Which type of circuit, series or parallel, is preferred while connecting a large number of bulbs:  

(b) for lighting inside the rooms of the hotel?

 


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? 


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


Calculate the effective resistance between the points A and B in the network shown below in Figure 8.45   


Calculate the electric current supplied by a 12 V battery of an automobile to a starter that develops a power of 2.4 kW.

State two characteristics of a fuse wire.

Name the unit which a consumer pays as the cost of electricity.

What do you mean by a solenoid?

A charge of 80 C flows in a conductor for 2 minutes.
(a) Calculate the current flowing through the conductor.
(b) If the current through a heater is 4 A what charge must be passing in 8 seconds?


The following appliances are to be used on 240 V supply. Calculate the current used by each and say which fuse, 2 amp, 5 amp or 13 amp should be incorporated with each, (i) A television rated at 150 W, (ii) An electric iron rated at 750 W, (iii) An immersion heater rated at 3000 W, (iv) A hair dryer rated at 500 W. How much will it cost to run the television set for 100 days for an average of 4 hours a day at 60 paise per unit?


A bulb of 40 W is used for 12.5 h each day for 30 days. Calculate the electrical energy consumed.


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 resistance of the bulb


An electrical appliance is rated at 1000 KVA, 220V. If the appliance is operated for 2 hours, calculate the energy consumed by the appliance in: (i) kWh (ii) joule.


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