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MDCAT - DUHS Past Papers - Physics - Chap No 10 Quiz

Attempt 10 MCQs on MDCAT - DUHS Past Papers - Physics - Chap No 10 | Quiz 1

1. A coil of 600 turns is threaded by magnetic flux of 8 webers. If this flux is reduced to 5 webers in 3 seconds. The induced EMF in the coil will be:



2. The mathematical equation representing Faraday's law is:



3. For efficient transfer of electricity through cables over the long distance:



4. Lenz' law is a form of the:



5. On which principle does the transformer work?



6. If a transformer has 500 turns on primary coil and 250 turns on secondary coil, then:



7. Induced EMF in A.C. generator can be increased by:



8. The main function of a transformer is to convert:



9. A generator supplies 100 V to the primary coil of transformer. The primary has 150 turns and the secondary has 500 turns. The secondary voltage is:



10. "The emf induced in a closed circuit is directly proportional to the rate of change of magnetic flux passing through the circuit" refers to:



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