
FSc. II Physics Chapter 15 Test
Quiz by edkasa physics
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8 questions
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- Q1In case of inductor, energy is stored in thegravitational fieldelectric fieldpotential fieldmagnetic field60s
- Q2AC generator is based uponFaraday's law of electromagnetic inductionMutual inductionLenz's lawMaxwell's equations60s
- Q3If a coil is wound on an iron core, the magnetic flux in itdecreasesincreasesbecomes zerostays the same60s
- Q4With the increase in the speed of motor, the magnitude of back emffirst increases then decreasesdecreasesremains sameincreases60s
- Q5The only difference in the construction of DC generator and AC motor iscarbon brushescommutatorcoilmagnetic field60s
- Q6Motional emf is given byvBLqBLeBLIBL60s
- Q7Lenz's law deals withmagnitude of currentdirection of induced currentdirection of emfmagnitude of emf60s
- Q8If a magnet and a coil are moving with the same speed, will any emf be induced in the coil?noyes60s