ETR290 - Electronics

Outline info
Last revision date 2017-11-21 12:06:48.695
Last review date 2017-11-21 12:07:08.395

Subject Title

Subject Description
This subject builds on the fundamental elements of electricity that was learned in ELF190.  The concepts are established in both a lecture and lab setting.  Students acquire an understanding of electrical principles and the purpose of relays, diodes, and capacitors. 
Students are required to follow all safety rules and regulations when working in the labs.
Multi-meters are used extensively in the labs.

Credit Status
One credit toward the Fire Protection Technician or Fire Protection Engineering Technology Diploma and the Fire Alarm Technician programs.

Learning Outcomes
Upon successful completion of this subject the student will be able to:

  1. Differentiate from the various types of relays and identify their functionality.
  2. Describe how diodes and capacitors work relative to fire alarm devices.
  3. Identify the components (transformer, rectifier, filter & regulator) of a fire alarm power supply and describe their individual function.
  4. Understand the basics of digital system components and interpret an input/output matrix.

Essential Employability Skills
Communicate clearly, concisely and correctly in the written, spoken and visual form that fulfils the purpose and meets the needs of the audience.

Respond to written, spoken, or visual messages in a manner that ensures effective communication.

Execute mathematical operations accurately.

Apply a systematic approach to solve problems.

Use a variety of thinking skills to anticipate and solve problems.

Interact with others in groups or teams in ways that contribute to effective working relationships and the achievement of goals.

Manage the use of time and other resources to complete projects.

Take responsibility for one's own actions, decisions, and consequences.

Cheating and Plagiarism
Each student should be aware of the College's policy regarding Cheating and Plagiarism. Seneca's Academic Policy will be strictly enforced.

To support academic honesty at Seneca College, all work submitted by students may be reviewed for authenticity and originality, utilizing software tools and third party services. Please visit the Academic Honesty site on for further information regarding cheating and plagiarism policies and procedures.

All students and employees have the right to study and work in an environment that is free from discrimination and/or harassment. Language or activities that defeat this objective violate the College Policy on Discrimination/Harassment and shall not be tolerated. Information and assistance are available from the Student Conduct Office at

Accommodation for Students with Disabilities
The College will provide reasonable accommodation to students with disabilities in order to promote academic success. If you require accommodation, contact the Counselling and Disabilities Services Office at ext. 22900 to initiate the process for documenting, assessing and implementing your individual accommodation needs.

ELF190 or equivalent

Topic Outline

  • review subject outline
  • review of electricity and safety

  • capacitance-capacitor construction
  • charging and discharging
  • dielectric constant and strength
  • capacitors in series and parallel
  • capacitance reactance
  • RC circuits
  • testing capacitors

  • inductance-definition
  • self-inductance
  • inductors
  • series and parallel combination of inductors
  • inductive reactance
  • RL circuits

  • mutual inductance
  • basic transformer calculations
  • transformer types and applications

  • basic semi-conductor physics
  • types of semi-conductors

  • diode approximations
  • diode properties, characteristic curves and design criteria

  • description and specifications
  • characteristic curves, properties and testing of zeners

  • description and specifications
  • characteristic curves, properties and testing of LED

  • linear dc power supply components
  • function of transformers, rectifier diodes, capacitors and zeners in linear dc power supplies

  • conversion between various numbering systems including binary, octal, decimal and hexadecimal

  • logic voltage levels
  • basic logic gates

Mode of Instruction
Lectures and labs

Prescribed Texts
Life Safety Systems Electronics. CFAA. ISBN 978-0-9734001-6-8   

Reference Material
Supplemental material provided by instructor.

Required Supplies
ETR290 Lab Kit
Digital Multi-meter- Model UT51 or equivalent at the instructor's discretion
Safety Glasses

Promotion Policy

Grading Policy
A+ 90%  to  100%
A 80%  to  89%
B+ 75%  to  79%
B 70%  to  74%
C+ 65%  to  69%
C 60%  to  64%
D+ 55%  to  59%
D 50%  to  54%
F 0%    to  49% (Not a Pass)
EXC Excellent
SAT Satisfactory
UNSAT Unsatisfactory

For further information, see a copy of the Academic Policy, available online ( or at Seneca's Registrar's Offices.

Modes of Evaluation
Students are required to complete weekly assignments, quizzes, term tests, lab work and a final exam to demonstrate their understanding of the subject material. The final grade for the subject will be calculated as follows:

Assignment and Quizzes 20%
Term Test 20%
Labs 25%
Final Exam 35%
Total 100%

Please Note 
  • Test dates have been pre-arranged and are non-negotiable with the exception of a doctor's note for illness. The doctor's note must be submitted to the instructor within two days of  returning to the college.
  • Attendance is mandatory in the lectures and laboratories.
  • Students must complete all labs and pass the final exam to get a passing grade.
  • To achieve a passing grade a minimum of 60% is required

For further information on evaluation and academic standing, see a copy of Academic Policy available at Seneca Registration office, and under "Policies" at 

Approved by: Sandra Noble