English

Name the Law Which is Illustrated by the Above V−I Graph. - Science

Advertisements
Advertisements

Question

 Name the law which is illustrated by the above VI graph.

Advertisements

Solution

 Ohm's law is illustrated by the above V−I graph.

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Electricity - Exercise 3

APPEARS IN

Lakhmir Singh Physics (Science) [English] Class 10
Chapter 1 Electricity
Exercise 3 | Q 20.3

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

Is Ohm’s law universally applicable for all conducting elements? If not, give examples of elements which do not obey Ohm’s law.


The relationship between the potential difference and the current in a conductor is stated in the form of a law.

1) Name the law.

2) What does the slope of V-I graph for a conductor represent?

3) Name the material used for making the connecting wire.


Write the SI unit of resistivity


Ohm's law gives a relationship between:

(a) current and resistance
(b) resistance and potential difference
(c) potential difference and electric charge
(d) current and potential difference


Keeping the p.d. constant, the resistance of a circuit is halved. The current will become:

(a) one-fourth
(b) four time
(c) half
(d) double


Four resistances of 16 ohms each are connected in parallel. Four such combinations are connected in series. What is the total resistance? 

 


Calculate the current flowing through a wire of resistance 5 Ω connected to a battery of potential difference 3 V.


Calculate the effective resistance across AB?


Rewrite the following statement by selecting the correct option.

The S.I. unit of resistance is __________.


State the limitations of Ohm’s law.


Choose the correct alternative.

Which of the following is an ohmic conductor?


State microscopic form of Ohm’s law.


The temperature of a conductor is increased. The graph best showing the variation of its resistance is:


A student carries out an experiment and plots the V-I graph of three samples of nichrome wire with resistances R1, R2 and R3 respectively. Which of the following is hue?


Suppose there is a circuit consisting of only resistances and batteries and we have to double (or increase it to n-times) all voltages and all resistances. Show that currents are unaltered. Do this for circuit of Example 3.7 in the NCERT Text Book for Class XII.


What is the resistance of a conductor through which a current of 0.5 A flows when a potential difference of 2V is applied across its ends?


Let the resistance of an electrical device remain constant, while the potential difference across its two ends decreases to one fourth of its initial value. What change will occur in the current through it? State the law which helps us in solving the above stated question. 


How is electric current related to the potential difference across the terminals of a conductor?

Draw a labelled circuit diagram to verify this relationship.


A current of 3.2 mA flows through a conductor. If charge on an electron is −1.6 × 10-19 coulomb, find the number of electrons that will pass each second through the cross section of that conductor.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×