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प्रश्न
What is the heating effect of electric current?
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उत्तर
When a resistor is connected in an electrical circuit, heat is produced in it due to the current. This is known as the heating effect of current.
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संबंधित प्रश्न
Compute the heat generated while transferring 96000 coulomb of charge in one hour through a potential difference of 50 V.
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Write Joule's law of heating.
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(b) How much energy is transferred to the heater each second?
How does the resistance of a wire vary with its:
diameter?
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What is meant by the heating effect of current? Give two applications of the heating effect of current.
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(a) tungsten
(b) bronze
(c) nichrome
(d) argon
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
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what is the heating effect of the electric current? state any four applications of it?
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True or False – If False give the correct answer
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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.
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Unscramble the following words:
SFEU
Your teacher has shown you the following activity.

Activity: Teacher has wound a long insulated piece of wire around an iron nail in the form of a coil. Free ends of the wire are connected to a cell through a switch as shown in the following figure. The current is switched on and some pins are placed near the ends of the nail.
Write down any three questions that come to your mind about this activity.
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Fuse is a strip of alloy wire which is made up of lead and tin with a very low ______.
An electric fuse is a wire made up of a material having ______ melting point.
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The electric fuse works on the Joule heating principle.
Explain why fuse wire is always connected in a series arrangement.
Find the odd one out.
An electric kettle consumes 1 kW of electric power when operated at 220 V. A fuse wire of what rating must be used for it?
What is the heating effect of electric current?
The graph of voltage vs current for four different materials is shown below.

Which of these four materials would be used for making filament of bulb?
