Learning electronics in

Kiriat Bialik

The website of the department of electronicsORT Kiriat Bialik - ISRAEL

http://space.ort.org.il/elecomp

Content

In our department

Exams

Learning materials

Links

Students write

Something nice

Advantages of Using the Website

Informal communication between students and teachers and among students

Availability of teachers to students’ questions

Teaching outside the classroom

Answers to students’ developing needs

Means to communicate information to students

Teachers– Students Communication

Students ask questions through the forum ( with regard to subjects learned in class or general questions )

Students send lab reports to the website (solve the problems of a printer,more convenient than a

floppy- disk, best works are published )

Mentoring in homework05/03/2002 16:17“ Hi Orit With regard to the RL experiment, I would like to know whether I need to measure only the current without measuring phase ?”

05/03/2002 17:37

“Hi Gil

You should stick to the requirements of the matriculation test – it is not necessary to measure phase, but you should draw graphs for the current and phase as well as calculate the differences between the measurements and the theoretical calculations”

Posing Challenging Questions

In the following circuit, the capacitor has reached its steady state.

Why is the maximum voltage across the capacitor 5 volts ?

23/01/2002 22:11 “Hello Orit I have transferred the circuit to EWB and I tried to change the resistance – as I raised the resistance, the voltage of the capacitor dropped and vice versa. So my conclusion is that the voltage is 5 volts as a result of a voltage drop on the resistor.”

23/01/2002 22:22“Hi Chen

There is a connection to the resistance, but… the capacitor tends to charge towards the voltage of the source ( 10 volts ), so how can it be that the voltage of the capacitor in the steady state is 5 volts ?”

23/01/2002 23:49 Another trial…I took the capacitor out of the circuit, and the voltage remains 5 volts… so I conclude that the resistor is the only factor influencing the voltage, and there is a voltage drop because of the large resistance (1000 K ohm)

24/01/2002 11:15Close, But not good enough…you haven’t explained why the voltage drops exactly to 5 volts ?

24/01/2002 17:38You said that there is a connection to the resistance, so I checked that the voltmeter has an internal resistance of 1000 K ohm, which is the same as the resistor…and that is why the voltage source divides into two equal parts – 5 volts each.

The Influence of the Website on School Atmosphere

Improved group pride via the forum.

The student have formed a website of their own, using the formal forum as a means of communication

Students from other departments want to have a website of their own, including a forum

The Goal of the Forum

Teacher:We invite you to use the forum more for educational purposes

Student 1:Dear teachers… we feel very united, so we use the forum for social purposes as well as for educational purposes.

Student 2:Dear teachers… when I had questions – I directed them to you through the forum…so don’t worry…the forum will be used for educational purposes if necessary.