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प्रश्न
The safety device based on the heating effect of electric current is called a ______.
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उत्तर
The safety device based on the heating effect of electric current is called a fuse.
Explanation:
Fuse is a safety device, which limits current in the circuit and breaks the circuit if the current exceeds its maximum limit.
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संबंधित प्रश्न
Name any two effects of electric current.
Why is a series arrangement not used for connecting domestic electrical appliances in a circuit?
Name the material which is used for making the filaments of an electric bulb.
In an electric bulb, coil of _______ metal is used.
When does overloading occur?
Heating effect of current is called ______
A current of 1 A is drawn by a filament of an electric bulb. Number of electrons passing through a cross-section of the filament in 16 seconds would be roughly:
(a) Observe the diagram given below and state whether the bulb will glow or not when we switch on K.
(b) Is it safe to handle the bulb when the switch is OFF?
(c) Give a reason for your answer in (b).
Paheli took a wire of length 10 cm. Boojho took a wire of 5 cm of the same material and thickness. Both of them connected the wires as shown in the circuit given in the following figure. The current flowing in both the circuits is the same.
- Will the heat produced in both cases be equal? Explain.
- Will the heat produced be the same if the wires taken by them are of equal lengths but of different thickness? Explain.
An electric iron of resistance 20 Ω draws a current of 5 A. The heat developed in the iron in 30 seconds is ______.
