# CBSE Class 7 Science Electric Current And Its Effects Worksheet Set C

Download printable Science Class 7 Worksheets in pdf format, CBSE Class 7 Science Electric Current And Its Effects Worksheet Set C has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Science Class 7 Assignments and practice them daily to get better marks in tests and exams for Grade 7. Free chapter wise worksheets with answers have been designed by Standard 7 teachers as per latest examination pattern

TOPIC : Electric Current and its effects

Q.1. Name the device which helps in breaking or completing a circuit?

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Q.2. Who observed the magnetic effect of current for the first time?

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Q.3. What is the glowing part of a bulb called?

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Q.4. When is the bulb said to be fused?

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Q.5. Draw the neat labelled diagram of an electric bell.

Q.6. What do you understand by the 'heating effect of current'? State 3 factors on which the amount of heat produced depend?

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Q.7. What is an electric fuse? How does it work?

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Q.8. What is an electromagnet? State any two factors that determine the strength of an electromagnet?

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Q.9. Raj made an electric circuit & placed a magnetic compass near it.

(a) On switching on, the needle of the magnetic compass showed a deflection Why?

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(b) On switching off, the needle came back to its normal north-south direction. Why?

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Q.10. Draw a circuit diagram, using symbols, showing a bulb, a closed switch & a battery of four cells. Also show the direction of current flowing through the circuit.

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