Lesson 5

Basic Electric Circuits

Review questions

N5C09 Which electrical circuit can have no current?

• A. A closed circuit
• B. A short circuit
• C. An open circuit
• D. A complete circuit

N5C10 What type of electrical circuit is created when a fuse blows?

• A. A closed circuit
• B. A bypass circuit
• C. An open circuit
• D. A short circuit

N5C11 Which electrical circuit draws too much current?

• A. An open circuit
• B. A dead circuit
• C. A closed circuit
• D. A short circuit

N5C06 What term describes how fast electrical energy is used?

• A. Resistance
• B. Current
• C. Power
• D. Voltage

N5C07 If you have light bulbs marked 60 watts, 75 watts and 100 watts, which one will use more electrical energy in one hour?

• A. The 60 watt bulb
• B. The 75 watt bulb
• C. The 100 watt bulb
• D. They will all be the same

N5C08 What is the basic unit of electrical power?

• A. The ohm
• B. The watt
• C. The volt
• D. The ampere

N5C04 If a 100-ohm resistor is connected to 200 volts, what is the current through the resistor?

• A. 1 ampere
• B. 2 amperes
• C. 300 amperes
• D. 20,000 amperes

N5C03 If a current of 2 amperes flows through a 50-ohm resistor, what is the voltage across the resistor?

• A. 25 volts
• B. 52 volts
• C. 100 volts
• D. 200 volts

N5C05 If a current of 3 amperes flows through a resistor connected to 90 volts, what is the resistance?

• A. 3 ohms
• B. 30 ohms
• C. 93 ohms
• D. 270 ohms

N5C01 What formula shows how voltage, current and resistance relate to each other in an electric circuit?

• A. Ohm's Law
• B. Kirchhoff's Law
• C. Ampere's Law
• D. Tesla's Law

N5C02 Which of the following principles is used when working with almost any electronic circuit?

• A. Ampere's Law
• B. Coulomb's Law
• C. Ohm's Law
• D. Tesla's Law

Table of Contents

Lesson 5 - Basic Electric Circuits

Review Questions

Answers

aa0ni@yahoo.com

Daniel Reynolds - AA0NI - July 29, 1998