The diagram above illustrates a bar magnet near a coil connected to a galvanometer, When the magnet is rapidly moving towards the coil. Which of the statements above is/are correct?
i. e.m.f. is induced in the coil ii. the galvanometer needle deflects iii. the magnet is attracted by the coil. A. i only B. ii only C. iii only D. i and iii only Correct Answer: Option A A. i onlyThe diagram below represents the displacement-time graph of the motion of an object thrown upwards. The velocity of the object at point P is?
A. maximum B. uniform C. zero D. terminal Correct Answer: Option CA rectangular block of dimensions 2.0m x 1.0m x 0.5m weighs 200N. calculate the maximum pressure exerted by the block on a horizontal floor.
A. 100Nm‾² B. 200Nm‾² C. 300Nm‾² D. 400Nm‾² Correct Answer: Option A A. 100Nm‾² Explanation P = wt/A=200/(2×1)=100Nm‾²A car traveling with a uniform velocity of 30ms-1 along a horizontal road overcomes a constant frictional force of 600N. Calculate the power of the engine of the car?
A. 18kW B. 20kW C. 180kW D. 200kW Correct Answer: Option A A. 18kW Explanation P = FV = 600 x 30 = 18kWProducts
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