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Electronic Principles

Electronic Principles
A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage?

700 V
651 V
707 V
208 V
None of these

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Electronic Principles
Inductive reactance is measured in units of:

None of these
Ohm
amperes per second
volts per second
henrys

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Electronic Principles
The Norton current is sometimes called the

Thevenin voltage
Thevenin current
None of these
Open-load current
Shorted-load current

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Electronic Principles
The nucleus of the copper atom contains how many protons?

18
1
None of these
29
4

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Electronic Principles
The direction of electron current flow is:

from positive to negative
from right to left
from negative to positive
None of these
from neutral to positive

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Electronic Principles
What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm?

None of these
445 ohm
690 ohm
150 ohm
220 ohm

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