Physics-
General
Easy
Question
Sand falls vertically at a rate of 50 kg/s from a stationary hopper on a horizontal conveyor belt moving at a speed of 1 m/s as shown in fig. If belt is perfectly inelastic, then what is the minimum power output of the engine which drives the belt with speed v = 1m/s
- 50 watt
- 25 watt
- 100 watt
- none of these
The correct answer is: 50 watt
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Two charges are placed near the origin: charge q1 = +3Q is placed at x = +d/ 2, and charge q2= –Q is placed at x = –d/2. Which of the following statement(s) is/are a valid description of the electric field arising from the two charges?
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physics-General
