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प्रश्न
What is nichrome? State its one use.
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उत्तर
Nichrome is an alloy of nickel, chromium, manganese and iron. It is used to make the heating elements of electrical appliances because it has a high resistance and a high melting point.
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संबंधित प्रश्न
State four most common electrical appliances based on heating effect of electric current. Why do we use finely heated platinum wire in surgery?
Write Joule's law of heating.
What is meant by the heating effect of current? Give two applications of the heating effect of current.
Identify the figure and give its use.
Rewrite the following statement by selecting the correct option:
1 A = ____________ mA.
Write the mathematical expression for Joule’s law of heating.
These days when current in the circuit suddenly increases _______ switches are used.
When does overloading occur?
What does overloading cause?
Explain the application of heating effect of electric current in an electric bulb with a diagram.
Which of the following is correct?
The heating element of an electric iron is made up of:
Why is parallel arrangement used in domestic wiring?
What is Joule’s heating effect? How can it be demonstrated experimentally? List its four applications in daily life.
An electric fuse is a wire made up of a material having ______ melting point.
An electrochemical cell converts ______ energy into ______ energy.
A trip switch is a ______ safety device.
1 kWh is equal to ______.
In which of the following applications of Iron, rusting will occur most? Support your answer with valid reason.
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