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Froggy Jumps
Froggy Jumps

Isolating Transformers

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Isolating Transformers

Froggy Jumps

(2)
Played 17
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About this activity

Physics

Created by

Susana BM
Susana BM
New Zealand

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Isolating Transformers
 

Froggy Jumps

Isolating TransformersOnline version

Physics

by Susana BM
1

What is the main purpose of an isolating transformer?

2

In which case is an isolating transformer not needed?

3

What type of construction does an isolating transformer have?

4

If an isolating transformer is designed for 230 V input, what is the output?

5

What is true about the primary and secondary windings of an isolating transformer?

6

What is the electrical distribution system in New Zealand called?

7

What is the voltage between phases in NZ system?

8

What is the voltage between any phase and the neutral point?

9

What may happen if the earth wire is properly connected and a fault develops in an appliance?

10

Why is a broken earth wire especially dangerous (in a drill running)?

11

Why is a broken earth wire especially dangerous for the operator?

12

Why does an isolating transformer reduce shock risk?

13

What is special about an autotransformer?

14

What is a disadvantage of an autotransformer?

15

What is a Variac?

16

What is a Variac used for in aircraft?

17

What voltage system do fixed autotransformers supply in aircraft?

 
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