Awater main pipe of diameter 10 cm enters a house 2 m below ground. a smaller diameter pipe carries water to a faucet 5 m above ground, on the second floor. water flows at 2 ms1 in the main pipe and at 7 ms on the second floor. find the diameter of the smaller diameter pipe. (i) [4 marks (ii) if the gauge pressure in the main pipe is 2x10 pa, find the gauge pressure in the pipe on 15 marks) (ii) discuss if it is possible to carry water to a faucet 17 m above ground, on the roof-top by 15 marks the second floor. extending the smaller diameter pipe

We will use a video to study faraday’s law of electromagnetic induction by analyzing the induction that occurs due a coil of copper wire sliding along an air track that passes through an external magnetic field. specifically, we will: examine some of the main principles behind faraday’s law. apply lenz’s law to determine the direction of the induced emf. take measurements of the induced emf from the voltmeter as the coil passes into and out of the external magnetic field. use the horizontal scale provided to determine the speed of the coil. calculate the magnetic field induced in the coil as it passes into and out of the external magnetic field.