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Electronic Principles

Electronic Principles
The equivalent of 1 micro A is:

one-millionth of an ampere
None of these
10000A
1000 A
one million amperes

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Electronic Principles
What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz?

less than 1 Ohm
None of these
690 Ohm
312 Ohm
1590 Ohm

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Electronic Principles
Current can flow through a normally open push button switch as long as:

its contact remain open
None of these
its contact remain open
you are pressing the button
you are not pressing the button

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Electronic Principles
The equivalent of 1 megohms is:

None of these
100,000 ohm
1 k ohm
one-millionth of an ohm
one million ohms

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Electronic Principles
The barrier potential accross each depletion layer is

0.7 V
None of these
20 V
0.8 V

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Electronic Principles
A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have?

None of these
550 Ohm
400 Ohm
410 Ohm
310 Ohm

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