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Electronics - Resistance and Power

@ : Home > Electronics > Resistance and Power > General Questions

Exercise

"It takes a very long time to become young."
- Pablo Picasso
16. 

What is the most commonly used conductor in electronics?
A. aluminumB. copper
C. goldD. silver
17. 

With Ohm's law, no change in resistance means that current and voltage will be:
A. directly proportional
B. unable to produce energy
C. the same
D. inversely proportional
18. 

A potentiometer has how many leads?
A. 1B. 2
C. 3D. 4
19. 

What is the ratio of 13 to 47 expressed in percent?
A. 2.76%B. 27.7%
C. 3.60%D. 36.1%
20. 

What happens to current and resistance if the voltage doubles?
A. Current doubles and resistance doubles.
B. Current doubles and resistance is halved.
C. Current remains the same and resistance doubles.
D. Current doubles and resistance remains the same.

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