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Electronics - Diodes and Applications

@ : Home > Electronics > Diodes and Applications > General Questions

Exercise

"In the middle of difficulty lies opportunity."
- Albert Einstein
1. 

What is a varistor?

A. a voltage-dependent resistor
B. a voltage-dependent diode
C. a current-dependent resistor
D. a current-dependent diode

2. 

Which type of transformer is required to create a 180 degree input to a rectifier?

A. center-tapped secondary
B. step-down secondary
C. stepped-up secondary
D. split winding primary

3. 

What circuit activity may shift a characteristic curve so that diode operating points are different?

A. higher power (heat)
B. higher resistance
C. lower voltage
D. lower current

4. 

What is wrong with this diode?

A. open
B. short
C. nothing
D. not enough data

5. 

The dc current through each diode in a bridge rectifier equals:

A. the load current
B. half the dc load current
C. twice the dc load current
D. one-fourth the dc load current




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