Resistance and Power - General Questions (8)

Directions to Solve

Resistance and Power - General Questions

57.

How is a 3.9 k omega (5) resistor color-coded?

A.	red, white, red, gold
B.	red, green, orange, silver
C.	orange, white, red, gold
D.	orange, green, orange, silver

Answer: Option C

Explanation:

No answer description available for this question

58.

With 1 mA of current, what wattage rating should a 470 ohm resistor have?

A.	1/4 watt
B.	1/2 watt
C.	1 watt
D.	2 watts

Answer: Option A

Explanation:

No answer description available for this question

59.

Which formula shows a direct proportionality between power and voltage?

A.	V = IR
B.	P = VI
C.	P = IR
D.	I = V/R

Answer: Option B

Explanation:

No answer description available for this question

60.

With Ohm's law, if voltage increases and resistance stays the same:

A.	current remains the same
B.	power decreases
C.	current increases
D.	resistance decreases

Answer: Option C

Explanation:

No answer description available for this question

61.

How do fixed resistors usually fail?

A.	slowly over time
B.	by increasing their value
C.	by becoming an open circuit
D.	by increasing their value and becoming an open circuit

Answer: Option C

Explanation:

No answer description available for this question

62.

The resistivity of copper is:

A.	9.9
B.	10.7
C.	16.7
D.	17.0

Answer: Option B

Explanation:

No answer description available for this question

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