NCCER PRACTICE EXAM PT 3

Front

The voltage commonly supplied to a residence by the local utility is _____?

Back

120V/240V

Front

The power in a 120V circuit with a current of 5A is _______?

Back

600W

Front

In a parallel circuit, the total resistance is _______?

Back

less than the smallest resistance

Front

An ammeter is used to measure _______?

Back

current

Front

A resistor has a color code of black, brown, brown, and silver. What is its resistance value and tolerance?

Back

10Ω ±10%

Front

What is the formula for calculating power in an electrical circuit?

Back

Power (P) = Voltage (V) × Current (I)

Front

What is the unit of electrical resistance?

Back

Ohm (Ω)

Front

What does the color code 'red' represent in resistor color coding?

Back

Red represents the number 2.

Front

What is the relationship between voltage, current, and resistance known as?

Back

Ohm's Law

Front

What is the total resistance in a series circuit?

Back

The total resistance is the sum of all individual resistances.