English

Compute the heat generated while transferring 96000 coulomb of charge in one hour through a potential difference of 50 V.

Advertisements
Advertisements

Question

Compute the heat generated while transferring 96000 coulomb of charge in one hour through a potential difference of 50 V.

Numerical
Advertisements

Solution

Given Charge, Q = 96000C

Time, t = 1hr = 60 x 60 = 3600s

Potential difference, V= 50volts

Now we know that H = VIt

So we have to calculate I first

As I = `Q/t`

∴ I = `96000/3600`

= `80/3A`

H = V × I × t

By substituting the values,

`50 xx 80/3 xx 60 xx 60`

= 4.8 × 106 J

Therefore, the heat generated is 4.8 × 106 J.

shaalaa.com
  Is there an error in this question or solution?
Chapter 11: Electricity - Intext Questions [Page 190]

APPEARS IN

NCERT Science [English] Class 10
Chapter 11 Electricity
Intext Questions | Q 20. | Page 190

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

An electric iron of resistance 20 Ω takes a current of 5 A. Calculate the heat developed in 30 s.


An electric heater of resistance 8 Ω draws 15 A from the service mains 2 hours. Calculate the rate at which heat is developed in the heater.


When current is switched ‘on’ in a room heater, it ______.


Write Joule's law of heating.


Give two reasons why nichrome alloy is used for making the heating elements of electrical appliances.


Why are the coils of electric irons and electric toasters made of an alloy rather than a pure metal?


Why is a series arrangement not used for connecting domestic electrical appliances in a circuit?


An electric iron of resistance 20 ohms draws a current of 5 amperes. Calculate the heat produced in 30 seconds.


Name the material which is used for making the filaments of an electric bulb.


The current passing through an electric kettle has been doubled. The heat produced will become:

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


If the current flowing through a fixed resistor is halved, the heat produced in it will become:


Give a scientific reason.

Tungsten metal is used to make a solenoid type coil in an electric bulb.


A coil of an alloy _______ is used in electric heater cooker as a resistor.


Which of the following substance contracts on heating?


Name any two appliances which works on the phenomenon of heating effect of electric current.


Explain the heating effect of electric current.


______ wire is used in the filament of the bulbs.


1 kWh is equal to ______.


In the electric equipment producing heat like iron, electric heater, boiler, toaster etc., an alloy such as nichrome is used, not pure metals.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×