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प्रश्न
What is used to turn off the sudden increase in current in the electrical circuit of the house nowadays?
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उत्तर
Nowadays, Miniature Circuit Breakers (MCB) is used to turn off the sudden increase in current in the electrical circuit of the house.
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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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An electric iron of resistance 20 ohms draws a current of 5 amperes. Calculate the heat produced in 30 seconds.
Explain why, the current that makes the heater element very hot, only slightly warms the connecting wires leading to the heater.
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(a) half
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(c) four time
(d) one-fourth
An electric fuse works on the:
(a) chemical effect of current
(b) magnetic effect of current
(c) lighting effect of current
(d) heating effect of current
The elements of electrical heating devices are usually made of:
(a) tungsten
(b) bronze
(c) nichrome
(d) argon
Identify the figure and give its use.

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Statement 2 : Heat in the resistor is created according to the rule of energy conservation.
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Give scientific reason :
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Which metal is used to make the filament of an electric bulb?
Write two devices based on the heating effect of electric current.
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Name any two appliances which work under the principle of heating effect of current.
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Unscramble the following words:
SFEU
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Define the following:
Electrolyte
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| Student | Object | Mass of Object before Rusting in g |
Mass of the coated object in g |
| A | Nail | 3.0 | 3.15 |
| B | Thin plate | 6.0 | 6.33 |
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