ECT 125 Week 7 Homework
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ECT 125 HW#7 -- 1 August 19, 2014 NAME:
1. A transformer with a 250mA AC primary current and a 4:1 turns ratio has a secondary current of?
1 A 250 mA
4 A
400 mA
None of the above
2. A transformer that has 1500 windings around the core for the primary and 250 secondary windings will have a turns ratio of ___ to 1.
3. A transformer with a 40-V AC primary voltage and a 3:5 turns ratio has an output voltage of
24 V
40 V
4 V
66.7 V
4. If a transformer has a turns ratio of 1: 5 and a secondary voltage of 20 V AC, the primary voltage will be?
5 V
20 V
1.25 V
80 V
None of the above
5. A resistive load of 500 Ohm is connected across the secondary windings of a 2:1 transformer. If the primary voltage is 50 V AC, what will be the secondary current?
100 mA
2 mA
50 mA 1 mA
None of the above
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ECT 125 Week 7 Homework
Click Below Link To Purchase
www.foxtutor.com/product/ect-125-week-7-homework
ECT 125 HW#7 -- 1 August 19, 2014 NAME:
1. A transformer with a 250mA AC primary current and a 4:1 turns ratio has a secondary current of?
1 A 250 mA
4 A
400 mA
None of the above
2. A transformer that has 1500 windings around the core for the primary and 250 secondary windings will have a turns ratio of ___ to 1.
3. A transformer with a 40-V AC primary voltage and a 3:5 turns ratio has an output voltage of
24 V
40 V
4 V
66.7 V
4. If a transformer has a turns ratio of 1: 5 and a secondary voltage of 20 V AC, the primary voltage will be?
5 V
20 V
1.25 V
80 V
None of the above
5. A resistive load of 500 Ohm is connected across the secondary windings of a 2:1 transformer. If the primary voltage is 50 V AC, what will be the secondary current?
100 mA
2 mA
50 mA 1 mA
None of the above