A circuit you’re building needs a voltmeter that goes from V to a full-scale reading of 5.0 V. Unfortunately, the only meter in the storeroom is an ammeter that goes from 0 μ A to a full-scale reading of 500 μ A. It is possible to use this meter to measure voltages by putting it in a measuring circuit as shown in Figure P23.67. What value of R must you use so that the meter will go to full scale when the potential difference ∆ V is 5.0 V? Assume that the ammeter is ideal. Figure P23.67
A circuit you’re building needs a voltmeter that goes from V to a full-scale reading of 5.0 V. Unfortunately, the only meter in the storeroom is an ammeter that goes from 0 μ A to a full-scale reading of 500 μ A. It is possible to use this meter to measure voltages by putting it in a measuring circuit as shown in Figure P23.67. What value of R must you use so that the meter will go to full scale when the potential difference ∆ V is 5.0 V? Assume that the ammeter is ideal. Figure P23.67
A circuit you’re building needs a voltmeter that goes from V to a full-scale reading of 5.0 V. Unfortunately, the only meter in the storeroom is an ammeter that goes from 0 μA to a full-scale reading of 500 μA. It is possible to use this meter to measure voltages by putting it in a measuring circuit as shown in Figure P23.67. What value of R must you use so that the meter will go to full scale when the potential difference ∆V is 5.0 V? Assume that the ammeter is ideal.
220 V is supplied to 800 primary turns of an autotransformer. What will the outputvoltage be across 200 secondary turns?
2. A filament transformer has a turns ratio of 1:20. What current must be supplied to theprimary windings if 5 A is required by the filament?
3. The filament transformer in the previous question is supplied with 150 V to theprimary side. What is the secondary voltage?
4. 440 V is supplied to 1000 primary turns of an autotransformer. If the desired outputvoltage is 100 V how many secondary turns must be tapped?
220 volts is supplied across 1200 winding of the primary coil of the autotransformer.If 1650 windings are tapped, what voltage will be supplied to the primary coil of thehigh-voltage transformer?2. A kVp meter reads 86 kVp and the turns ratio of the high-voltage step-up transformeris 1200. What is the true voltage across the meter?3. The supply voltage from the autotransformer to the filament transformer is 60 volts. If theturns ratio of the filament transformer is 1/12, what is the filament voltage?4. If the current in the primary side of the filament transformer in question 3 were 0.5 A,what would be the filament current?5. The supply to a high-voltage step-up transformer with a turns ratio of 550 is 190 volts.What is the voltage across the x-ray tube?
220 V is supplied to 800 primary turns of an autotransformer. What will the outputvoltage be across 200 secondary turns?
2. A filament transformer has a turns ratio of 1:20. What current must be supplied to theprimary windings if 5 A is required by the filament?
3. The filament transformer in the previous question is supplied with 150 V to theprimary side. What is the secondary voltage?
4. 440 V is supplied to 1000 primary turns of an autotransformer. If the desired outputvoltage is 100 V how many secondary turns must be tapped?
Chapter 23 Solutions
Student Workbook for College Physics: A Strategic Approach Volume 1 (Chs. 1-16)
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DC Series circuits explained - The basics working principle; Author: The Engineering Mindset;https://www.youtube.com/watch?v=VV6tZ3Aqfuc;License: Standard YouTube License, CC-BY