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Resistor

Authored by Hải Dương

Science

1st Grade

Used 1+ times

Resistor
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary function of a resistor in an electrical circuit?

A. To increase the current flow

B. To store electrical energy

C. To oppose the current flow

D. To generate voltage

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why are resistors used with LED lights?

A. To increase brightness

B. To prevent voltage spikes

C. To cool the LED

D. To shorten the LED lifespan

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a function of a resistor?

A. Dividing voltage

B. Biasing active elements

C. Amplifying signals

D. Terminating transmission lines

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many color bands are commonly used on a resistor to indicate its value and tolerance?

A. 2

B. 3

C. 4

D. 6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the resistance value of a resistor with color bands: Red - Violet - Orange - Gold?

A. 270 ohms

B. 2.7 ohms

C. 27,000 ohms

D. 2,700 ohms

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which resistor is most suitable for industrial machines requiring high current?

C. Wire wound resistor

B. Carbon film resistor

A. Metal film resistor

D. Trimmer resistor

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one main role of a resistor in a circuit?

A. Store electricity

B. Limit current

C. Produce voltage

D. Generate electricity

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