English

The Elements of Electrical Heating Devices Are Usually Made Of: (A) Tungsten (B) Bronze (C) Nichrome (D) Argon - Science

Advertisements
Advertisements

Question

The elements of electrical heating devices are usually made of:

(a) tungsten
(b) bronze
(c) nichrome
(d) argon

Advertisements

Solution

(c) nichrome
Nichrome has a high resistance.

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Electricity - Exercise 8

APPEARS IN

Lakhmir Singh Physics (Science) [English] Class 10
Chapter 1 Electricity
Exercise 8 | Q 25

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

Why does the cord of an electric heater not glow while the heating element does?


The safety device based on the heating effect of electric current is called a ______.


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


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


A resistance of 25 Ω is connected to a 12 V battery. Calculate the heat energy in joules generated per minute.


Identify the figure and give its use.


Identify the figure and give its use.


Statement 1 : Electric current ( flow of electrons ) creates heat in the resistor.
Statement 2 : Heat in the resistor is created according to the rule of energy conservation.
Explain Statement 1 with the help of Statement 2.


The electricity bill specifies the usage in _______.


The heating element of an electric iron is made up of:


An electric bulb is connected to a 220 V generator. The current is 0.50 A. What is the power of the bulb?


What is Joule’s heating effect? How can it be demonstrated experimentally? List its four applications in daily life.


An electric component used as a safety device is electric circuit is ______.


Unscramble the following words:

SFEU


Match the following

1. Bulb a. Conductor
2. Electroplating b.

Insulator

3. Pure water c.  Heating effect of current
4. Salt solution d. Chemical effect of current

A fuse is used in an electric circuit to stop high currents flowing through the circuit.


Explain why fuse wire is always connected in a series arrangement.


Tara, after completing her exams, went to her grandmother's house along with her younger brother Rahul. One day, Rahul came home after playing and switched on the fan and air conditioner. At the same time, his grandmother was preparing a milkshake for him using a mixer. Suddenly, they heard a big sound and the electricity of the house got shut down. Tara is called an electrician. He said the main reason for supply to shut down was overloading.

  1. What is overloading?
  2. Is overloading and short the same? When does short-circuiting take place?
  3. How can the effects of overloading be avoided?

1 kWh is equal to ______.


What is the heating effect of electric current?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×