Physics
Grade-7
Easy
Question
DIRECTIONS: Read the following two statements carefully and choose the correct options.
Statement 1: The heating up of a thin conducting wire on passing an electric current through it is called the heating effect of current.
Statement 2: Various electrical appliances that are based on the heating effect of current contain a coil of wire called an element.
- Statement (2) is correct, while statement (1) is incorrect.
- Both statements are correct.
- Statement (1) is correct, while Statement (2) is incorrect.
- Both statements are incorrect.
Hint:
Statement (2) is correct, while statement (1) is incorrect
The correct answer is: Statement (2) is correct, while statement (1) is incorrect.
When an electric current flows through a high resistance conducting wire heat is produced in the conducting wire.
In all the electrical appliances, a coil of wire called an element is present. When these appliances are switched on, electric current flows through the circuit. This makes the element in the appliances to give out heat.
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