Electric Circuits
If the three colour bands of a resistor are grey, violet and gold, what is the value of the resistor?

 8.7 ohms.
 6.7 ohms.
 7.7 ohms.
 9.7 ohms.

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Electric Circuits
What is called the instantaneous value of an alternating current?

 The value of peak current at any instant.
 The value of alternating frequency at any instant.
 The value of peak quantity at any instant.
 The value of alternating quantity at any instant.

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