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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

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

What Makes an Electric Current Flow in a Wire?


If the charge on an electron is 1.6 × 1019 coulombs, how many electrons should pass through a conductor in 1 second to constitute 1 ampere current?


In the circuit diagram  given below, three resistors R1, R2, and R3 of 5 Ω, 10 Ω and 30 Ω, respectively are connected as shown 

  

Calculate:

  1. current through each resistor.
  2. total current in the circuit. 
  3. total resistance in the circuit.

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?  


State two differences between the e.m.f and terminal voltage of a cell. 


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. 


The following table shows the current in Amperes and potential differences in Volts.

  1. Find the average resistance.
  2. What will be the nature of the graph between the current and potential difference? (Do not draw a graph.)
  3. Which law will the graph prove? Explain the law.
V (volts) I (amp)
4 9
5 11.25
6 13.5

Two resistors of 4 Ω and 6 Ω are connected in parallel. The combination is
connected across a 6 volt battery of negligible resistance. Calculate:
( i) The power supplied by the battery,
(ii) The power dissipated in each resistor.


The marking on an electric bulb reads; 200 V, 60 W. What does it mean?

A current of 0.3 A is flowing through a branch of 6 Ω resistors in a junction as shown in fig. . Calculate the
(a) P.d. across the junction XY,
(b) Current flowing through 9Ω and 24Ω
( c) P.d. across 24 Ω resistor, and
( d) e.m.f. of the cell.


The circuit diagram in fig  shows two coils of an insulated copper wire wound on a cardboard tube. G is a center zero galvanometer.

(a) Describe what will happen when th e swi tch K is cl osed for severa l
seconds and then opened again .
(b) What will be the effect of repeating the experiment with an iron placed in the tube?


State whether the current is a scalar or vector?


My mother was operating washing machine on Sunday morning. Suddenly, she saw a spark coming out of the electric board and the electric current in the house failed. An electrician was called to look into the matter. What should he have noticed.


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


______ is used to measure the electric current.


Define an electric current.


Problems for practice:

If 3A current flows through a circuit, then convert the current in terms of a milliampere.


The number of electrons constituting a 1-coulomb charge is ______.


What is the SI unit for the current?


Find the odd one out.

Loudspeaker, Bar magnet/magnet, Electric motor, Microphone.


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