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  • State whether the following statements are true or false. (a) An electric motor converts mechanical energy into electrical energy.

Q. 6.     State whether the following statements are true or false. 

            (a) An electric motor converts mechanical energy into electrical energy.

            (b) An electric generator works on the principle of electromagnetic induction.

            (c) The field at the centre of a long circular coil carrying current will be parallel straight lines.

            (d) A wire with a green insulation is usually the live wire of an electric supply.

Answers (1)

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a) False, because an electric motor converts electrical energy into mechanical energy. 26126

b) True, as electric generator uses the principle of electromagnetic induction for producing current.

c)True, as the long circular coil is equivalent to a solenoid. and hence the field at the centre of a long circular coil carrying current will be parallel straight lines.

d) False, As the live wire in domestic circuits is usually red in colour and ground wire is in green colour, NORMALLY.

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Pankaj Sanodiya

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