Question :
A) 0.14 m/s
B) 140 m/s
C) 1.4 km/s
D) 14 m/s
Answer : D
Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2
A) 0.14 m/s
B) 140 m/s
C) 1.4 km/s
D) 14 m/s
Answer : D
Description :
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Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to
A) the heating effect of current alone
B) hysteresis loss alone
C) both the heating effect of current and hysteresis loss
D) intense sunlight at noon
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A) amplitude
B) velocity
C) wavelength
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B) Alternating current to Direct current
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