Electromagnetism: Calculate how many turns in the output coil of a transformer

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  Part A How many turns does the primary coil on the transformer have if the secondary coil has 110 turns? Express your answer using two significant figures.

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  So the secondary could provides 9.23 V. The solution shows how to calculate the voltage output from the secondary coil of the transformer.

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  (a) The primary coil has 2000-turns, how many turns are in a secondary coil? (b) If the average power consumption of your laptop is 80W, what is the average current in the primary coil and the current I in the secondary coil?

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  3) A transformer with 250 turns in its primary is used to obtain the X-ray tube voltage of 40 kV, how many turns should there be in the secondary winding? 4) What is the current in the secondary coil?

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  A transformer with 300 loops in primary coil is connected to a 120-V source. How many turns are required, in the secondary coil, to provide an output of 240V?

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  Consider a transformer with Np turns of wire in the primary (input) circuit and Ns turns in the secondary (output). Which of the following statements are true? Briefly justify your answers. 1.

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  A transformer with 100 turns in primary coil is connected to a 110-V source. How many turns are required, in the secondary coil, to provide an output of 160 V? 6.

• Sample Physics Questions

  To achieve this, the voltage is changed by a transformer with 24 turns in its primary coil. A) How many turns are in the transformers secondary coil? 3. A 24 m long wire has a resistance of 6.0 ohms.