EIAT Applied Electrical Calculations

Question 1

Using Ohm's Law, what is the current in a circuit with a voltage of 120 volts and a resistance of 24 ohms?

Accepted Answer

5 A

Answer

2,880 A

Answer

0.2 A

Answer

144 A

Question 2

Two resistors of 8 ohms each are connected in series. What is the total resistance?

Accepted Answer

16 ohms

Answer

4 ohms

Answer

8 ohms

Answer

64 ohms

Question 3

An elevator motor operates at 240 volts and draws 20 amperes of current. What is its power consumption in watts?

Accepted Answer

4,800 watts

Answer

12 watts

Answer

260 watts

Answer

220 watts

Question 4

A wire with a resistance of 2 ohms carries a current of 6 amperes. What is the voltage drop across the wire?

Accepted Answer

12 V

Answer

3 V

Answer

0.33 V

Answer

36 V

Question 5

Two resistors of 6 ohms and 3 ohms are connected in parallel. What is the total resistance?

Accepted Answer

2 ohms

Answer

9 ohms

Answer

0.5 ohms

Answer

18 ohms

Question 6

A 480-watt motor runs on 120 volts. What current does it draw?

Accepted Answer

4 A

Answer

57,600 A

Answer

360 A

Answer

360 A