MATCH THE COLUMNS: Column A Column B 1. Open circuit A. Electric fuse 2. Copper B. No flow of current 3. Nichrome wire C. Heavy loads 4. Electromagnet D. Heating coil 5. E Good conductor

1 . Open circuit. - B. No flow of current. No current flows through an open circuit. The circuit in which electrical contact at any point is broken is called an open circuit. 2 . Copper. - E. Good conductor. Most wires are made out of copper because it conducts electricity with very little resistance. 3 . Nichrome wire. - D. Heating coil. When electric current flows through a resistor, such as a heating coil of nichrome wire, it gets heated up. 4 . Electromagnet. - C. Heavy loads. Electromagnets are used on cranes in steel-works and scrap-yards for lifting heavy loads. 5 . A. Electric fuse Electric fuse is a safety device which prevents damage to the electrical appliances and possible fire. Column A Column 1 . Open circuit B . No flow of current 2 . Copper E . Good conductor 3 . Nichrome wire D . Heating coil 4 . Electromagnet C . Heavy loads 5 . A . Fuse

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Science 7>Chapter 14 - Electric Current and Its Effects>FORMATIVE & SUMMATIVE ASSESSMENTS>Q 5

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Which of the following is the strongest electromagnet?

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Important Questions on Electric Current and Its Effects

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Science 7>Chapter 14 - Electric Current and Its Effects>FORMATIVE & SUMMATIVE ASSESSMENTS>Q 1

Name the continuous path of flow of electricity through various components connected to a source of electricity. (Choose from electric circuit or electric cell).