Mixed Review for HVAC written test

Front

What happens to current when voltage is increased while resistance remains constant?

Back

Current will increase.

Front

What is the formula to calculate Voltage in a circuit?

Back

Voltage (V) = Current (I) × Resistance (R)

Front

If a circuit has a resistance of 5 Ω and a current of 2 A, what is the voltage?

Back

10 V

Front

What is the unit of measurement for electrical resistance?

Back

Ohm (Ω)

Front

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

Back

Ohm's Law

Front

If a battery produces 12.6 Volts, what is the current flow for a 6 Ohm resistor?

Back

2.1 Amps

Front

In which direction does heat flow when holding a hot cup of tea?

Back

From the cup to her hand.

Front

What is the unit of measurement for electric current?

Back

Ampere (A) or Amps.

Front

What does an increase in resistance do to current if voltage is constant?

Back

Current will decrease.

Front

What is the formula to calculate current in a circuit?

Back

Current (I) = Voltage (V) / Resistance (R)