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प्रश्न
Can we use the same fuse in a geyser and a television set? Explain.
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उत्तर
No, a geyser and a television set require different amounts of current to operate
Name two electric devices for each where
- the heating effect of current is used
- the magnetic effect of current is used
Maim Heating effect – Geyser, room heater.
Magnetic effect – Electric bell, Cranes to lift magnetic material.
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संबंधित प्रश्न
Why is the tungsten used almost exclusively for filament of electric lamps?
Name the material which is used for making the filaments of an electric bulb.
The heat produced in a wire of resistance 'x' when a current 'y' flows through it in time 'z' is given by:
(a) x2 × y × z
(b) x × z × y2
(c) y × z2 × x
(d) y × z × x
How does the wire in the filament of a light bulb behave differently to the other wires in the circuit when the current flows?
What property of the filament wire accounts for this difference?
Which electric heating device in your home do you think have resistors which control the flow of electricity?
Give a scientific reason.
Tungsten metal is used to make a solenoid type coil in an electric bulb.
What does overloading cause?
Assertion: Bending of wire decreases the resistance of the electric wire.
Reason: The resistance of a conductor depends on length, thickness, nature of material and temperature of the conductor.
An electric cell produces electricity from the ______ ______ in it.
State the law that explains the heating effect of current with respect to the measurable properties in an electrical circuit.
