- #1

Femme_physics

Gold Member

- 2,548

- 1

I also needed to explain my answer... I hope it's all true. Can you tell me?

True or False

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The Effective Voltage in our houses (Israel) is 220 Volts, therefor the Max VOltage is 380 Volts.

FALSE

220[itex]\sqrt[]{}2[/itex] = 311

---

The equivalent inductance between points AB in the following circuit is 90 mh.

http://img824.imageshack.us/img824/3699/coils.jpg [Broken]

FALSE, due to the calculations I made in the pic.

---

The Duty Cycle of the final repeating signal is 66.66%.

http://img545.imageshack.us/img545/570/31464876.jpg [Broken]

True.

4/6 = 66.66%

---

In a rectification circuit of an AC sinusoidal voltage with the help of a single diode we get the following wave form after rectification.

http://img197.imageshack.us/img197/8518/booep.jpg [Broken]

FALSE. You need 4 diodes for rectification such as in a Diode Bridge.

---

The conductance of resistor R in the following circuit is 10 Mho.

http://img705.imageshack.us/img705/4672/dadamn.jpg [Broken]

FALSE

G = 1/100 = 0.01 Mho

----

The Frequency of the following repeating signal is 6 Kilohertz.

http://img825.imageshack.us/img825/4918/xttx.jpg [Broken]

FALSE

f = 1/6

omega = 2pif = 2 x pi x 1/6 = 1.047 Hertz

True or False

-------------

The Effective Voltage in our houses (Israel) is 220 Volts, therefor the Max VOltage is 380 Volts.

FALSE

220[itex]\sqrt[]{}2[/itex] = 311

---

The equivalent inductance between points AB in the following circuit is 90 mh.

http://img824.imageshack.us/img824/3699/coils.jpg [Broken]

FALSE, due to the calculations I made in the pic.

---

The Duty Cycle of the final repeating signal is 66.66%.

http://img545.imageshack.us/img545/570/31464876.jpg [Broken]

True.

4/6 = 66.66%

---

In a rectification circuit of an AC sinusoidal voltage with the help of a single diode we get the following wave form after rectification.

http://img197.imageshack.us/img197/8518/booep.jpg [Broken]

FALSE. You need 4 diodes for rectification such as in a Diode Bridge.

---

The conductance of resistor R in the following circuit is 10 Mho.

http://img705.imageshack.us/img705/4672/dadamn.jpg [Broken]

FALSE

G = 1/100 = 0.01 Mho

----

The Frequency of the following repeating signal is 6 Kilohertz.

http://img825.imageshack.us/img825/4918/xttx.jpg [Broken]

FALSE

f = 1/6

omega = 2pif = 2 x pi x 1/6 = 1.047 Hertz

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