Electronic Principles
A device that converts chemical energy to electrical energy is called a:

solar cell
thermocouple
chemical cell
electric device
None of these

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Electronic Principles
Which one of the following phrases most accurately describes a purely inductive circuit?

Inductive reactance provides the only opposition to current flow
The ac voltage lags the current by 90 degree
None of these
Combinations of resistance and inductive reactance provide any opposition to current flow
Resistances provide the only opposition to current flow

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