Question
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199Â Â Â Â 209 What will come in place of the question mark (?) in the following series?Solution
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A coil with N turns and area A is placed in a magnetic field varying as B = B₀·e–αt. What is the induced EMF at time t = 0?
What will be the energy possessed by a stationary object of mass 10 kg placed at a height of 20 m above the ground? (Take g = 10 m/s^2)
In a refrigerator, the cooling system should always be –
A particle is moving in a uniform circular motion with constant speed v along a circle of radius r. The acceleration-of the particle is –
Specific resistance of a conductor increases with :
Which of the following statement is correct?
I. Magnetite is a natural magnet
II. A freely suspended magnet always aligns in N-S direction
Two capacitors, 2 µF and 3 µF, are charged separately to 100 V and 50 V respectively, and then connected positive to positive, negative to negative. F...
Two capacitors of 4 μF and 6 μF are connected in series. The equivalent capacitance is:
In a concave mirror which of the following pair of position of object – size of the image is correct?
I. At infinity – point sized
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