Circuit Lab B/C

Test your knowledge of various Science Olympiad events.
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Re: Circuit Lab B/C

Post by azboy1910 » November 17th, 2020, 2:43 pm

Krish2007 wrote:
November 17th, 2020, 2:16 pm
1) Which of the famous scientists in the rules found that electricity could be produced chemically?
2) List 4 properties of an ideal op-amp.
3) Image
Find V1 and V2.
1) Alessandro Volta 
2) It has zero offset voltage, zero output impedance, infinite bandwidth, and infinity input impedance.  

===Number 3 Below=== 



  

V1 = 20 V 
V2 = 40 V
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Re: Circuit Lab B/C

Post by Krish2007 » November 17th, 2020, 3:46 pm

azboy1910 wrote:
November 17th, 2020, 2:43 pm
Krish2007 wrote:
November 17th, 2020, 2:16 pm
1) Which of the famous scientists in the rules found that electricity could be produced chemically?
2) List 4 properties of an ideal op-amp.
3) Image
Find V1 and V2.
1) Alessandro Volta 
2) It has zero offset voltage, zero output impedance, infinite bandwidth, and infinity input impedance.  

===Number 3 Below=== 



  

V1 = 20 V 
V2 = 40 V
All Correct, your turn!
Beckendorff Junior High '21
Past events: Ornithology, Game On, Mission Possible, Circuits
2021 events: Game On, Water Quality, Circuits, Mission Possible, Botany

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Re: Circuit Lab B/C

Post by azboy1910 » November 17th, 2020, 6:17 pm

1. Explain briefly what a solenoid is and what it does when connected to a battery (For instance, for a resistor "opposes current," could be an answer).
2. Who invented this device?
3. Find voltage RT in the following circuit.
Image
Last edited by azboy1910 on November 17th, 2020, 6:20 pm, edited 2 times in total.
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UTF-8 U+6211 U+662F
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Re: Circuit Lab B/C

Post by UTF-8 U+6211 U+662F » November 17th, 2020, 8:46 pm

azboy1910 wrote:
November 17th, 2020, 6:17 pm
1. Explain briefly what a solenoid is and what it does when connected to a battery (For instance, for a resistor "opposes current," could be an answer).
2. Who invented this device?
3. Find voltage RT in the following circuit.
Image
1. A solenoid is a coil of wire designed to create a magnetic field when current is run through it. A solenoid opposes changes in current.
2. Faraday?
3. 9.62 ohms

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Re: Circuit Lab B/C

Post by azboy1910 » November 18th, 2020, 12:09 pm

UTF-8 U+6211 U+662F wrote:
November 17th, 2020, 8:46 pm
azboy1910 wrote:
November 17th, 2020, 6:17 pm
1. Explain briefly what a solenoid is and what it does when connected to a battery (For instance, for a resistor "opposes current," could be an answer).
2. Who invented this device?
3. Find voltage RT in the following circuit.
Image
1. A solenoid is a coil of wire designed to create a magnetic field when current is run through it. A solenoid opposes changes in current.
2. Faraday?
3. 9.62 ohms
1. Correct 
2. I believe Ampere invented the solenoid. 
3. Correct 

Your turn!
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Re: Circuit Lab B/C

Post by UTF-8 U+6211 U+662F » November 18th, 2020, 1:12 pm

Define impedance and explain what it is used for.

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Re: Circuit Lab B/C

Post by azboy1910 » November 23rd, 2020, 4:29 pm

UTF-8 U+6211 U+662F wrote:
November 18th, 2020, 1:12 pm
Define impedance and explain what it is used for.
Impedance is the complete opposition of the flow of current, unlike resistance, which only slows the speed of the flow of current. It is commonly described as the "resistance to AC current." It is used in capacitors and inductors in the form of reactance, which are used in a variety of appliances, as well as numerous other applications.
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