English

If Five Resistances, Each of Value 0.2 Ohm, Are Connected in Series, What Will Be the Resultant Resistance? - Science

Advertisements
Advertisements

Question

If five resistances, each of value 0.2 ohm, are connected in series, what will be the resultant resistance?

Advertisements

Solution

If five resistors, each of value 0.2 Ω, are connected in series, the resultant resistance will be the sum of the individual resistances.
R = R1 + R2 + R3 R4 R5
R = 0.2 + 0.2 +0.2 + 0.2 + 0.2 
R = 5 x 0.2
R = 1 Ω

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Electricity - Exercise 5

APPEARS IN

Lakhmir Singh Physics (Science) [English] Class 10
Chapter 1 Electricity
Exercise 5 | Q 2

RELATED QUESTIONS

If the equivalent resistance is to be increased, then the number of resistances should be connected in

  1. Series
  2. Parallel
  3. Mixed arrangement
  4. None of the above

The V-I graph for a series combination and for a parallel combination of two resistors is shown in the figure below. Which of the two A or B. represents the parallel combination? Give reasons for your answer.


An electrical appliance has a resistance of 25 Ω. When this electrical appliance is connected to a 230 V supply line, the current passing through it will be:

(a) 0.92 A
(b) 2.9 A
(c) 9.2 A
(d) 92 A

 


When a 4 Ω resistor is connected across the terminals of a 12 V battery, the number of coulombs passing through the resistor per second is:

(a) 0.3
(b) 3
(c) 4
(d) 12


How does the resistance of a wire change when:

 its diameter is tripled? 

 


Calculate the combined resistance in each case: 


The diagram below shows part of a circuit: 

 

If this arrangement of three resistors was to be replaced by a single resistor, its resistance should be:
 
(a) 9 Ω
(b) 4 Ω
(c) 6 Ω
(d) 18 Ω


 


Draw a V-I graph for a conductor at two different temperatures. What conclusion do you draw from your graph for the variation of resistance of conductor with temperature?


What potential difference is needed to drive a current o f 1 A through a 5 Ω resistor?


What is the equivalent resistance between A and B in the given circuit (Fig?)


Choose the correct alternative and rewrite the following sentence.

If three resistors 2 ohms, 3 ohms and 4 ohms are connected in series, then the effective resistance in the circuit will be _______ ohms.


What material is used for making wire to prepare heating coils? Give a reason.


How does the resistivity of a semiconductor depend on temperature?


Define the term resistivity and state its S.I. unit. Which will have higher resistivity a conductor or an insulator.


State and explain the laws of resistance.


In the circuit shown below, calculate the equivalent resistance between the points (i) A and B, (ii) C and D.


What is the equivalent resistance between the points X and Y for the given network?


Two resistors having 2Ω and 3Ω resistance are connected—(i) in series, and (ii) in parallel. Find the equivalent resistance in each case.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×