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BINA LIBRARY-ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT-EXERCISE
- A lamp is connected in series with a capacitor. Predict your observati...
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- Explain the principle on which the metal detector is used in airport f...
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- Which surface have more friction – rough or smooth ? Why ?
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- Give two examples where rolling friction is utilized
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- Name the two factors on which the magnitude of frictional force depend...
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- An inductor of reactance 10Ω and resistance 10Ω are connected in serie...
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- A capacitor and resistor are connected in series with an ac source. If...
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- Give two methods by which friction is reduced in the wheels of the car...
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- A source of alternating emf of 220 V and 50 Hz is connected in series ...
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- A rectangular coil having 60 turns and area of 0.4m^2 is held at rig...
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- sinusoidal voltage V = 200 sin 314 t is applied to a resistor of 10Ω. ...
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- A 3muF capacitor is connected to a 220V, 50 Hz a.c. source. Calculate ...
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- A capacitor of 50µF, a resistor of 102 and an inductor L are in series...
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- The turns-ratio of a step up transformer is 1:10 and a current of 1.5 ...
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- Calculate current drawn by the primary of a transformer, which steps d...
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- When current changes from 3A to 2A in one millisecond a coil produces ...
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- The co-efficient of mutual inductance when magnetic flux changes by 2 ...
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- The mutual inductance of an induction coil is 5H. In the primary coil ...
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- A coil of wire of radius r has 600 turns and a self inductance of 108 ...
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- The average power dissipation in a pure capacitor in ac circuit is
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