Resistance and Power MCQs

Question 1

The unit designator for resistance value is the:

Accepted Answer

ohm

Answer

ampere

Answer

volt

Answer

watt

Question 2

One ampere of current flowing through one ohm of resistance is equal to:

Accepted Answer

1 watt

Answer

1 horsepower

Answer

1 Btu

Answer

1 joule

Question 3

Good insulators:

Accepted Answer

have a large dielectric strength

Answer

have few electrons in their outer shells

Answer

have a small breakdown voltage

Answer

have many electrons in the nucleus

Question 4

The power rating of a resistor is __________ related to __________.

Accepted Answer

directly, its surface area

Answer

directly, the type of cooling used

Answer

indirectly, the type of material used

Answer

indirectly, the color coding