Circuit Lab B/C

[azboy1910]

Click to Show Answer

1. (assuming 2 sigfigs) 3.5e11 J/m^3
2. Overheats and burns up?
3. V3 = 10 V, V4 = 7.5 V

First circuit question marathon Hope that's right.

All good! Your turn!

[ThomasL]

Left this thread hanging for a while So here are some more questions:
1. Explain what a Zener diode is and how it's used.
2. How many NAND gates are required to make a NOT gate? A NOR gate? An XOR gate?
3. What is the peak-to-peak voltage of USA AC electricity?

[azboy1910]

Left this thread hanging for a while So here are some more questions:
1. Explain what a Zener diode is and how it's used.
2. How many NAND gates are required to make a NOT gate? A NOR gate? An XOR gate?
3. What is the peak-to-peak voltage of USA AC electricity?

1. A zener diode is a diode designed to operate and experience breakdown at a specific reverse voltage, when current starts flowing through the diode in reverse bias.
2. It takes 1 NAND gate to make a NOT gate, 4 NAND gates to make a NOR gate and 4 NAND gates to make a XOR gate.
3. The peak-to-peak voltage in US households is 340 V.

[ThomasL]

Left this thread hanging for a while So here are some more questions:
1. Explain what a Zener diode is and how it's used.
2. How many NAND gates are required to make a NOT gate? A NOR gate? An XOR gate?
3. What is the peak-to-peak voltage of USA AC electricity?

1. A zener diode is a diode designed to operate and experience breakdown at a specific reverse voltage, when current starts flowing through the diode in reverse bias.
2. It takes 1 NAND gate to make a NOT gate, 4 NAND gates to make a NOR gate and 4 NAND gates to make a XOR gate.
3. The peak-to-peak voltage in US households is 340 V.

Looks good!! Your turn!

[azboy1910]

Ok, here are some easy ones since I can't think of any hard ones:

1) What direction do electric field lines created by a stationary proton point?
2) Do ferromagnetic metals retain their magnetic property? If not, state what needs to happen for its magnetic property to be "activated."
3) An ideal diode connected to a 5 V battery in reverse bias will receive how much current and how much voltage?

[UTF-8 U+6211 U+662F]

Ok, here are some easy ones since I can't think of any hard ones:

1) What direction do electric field lines created by a stationary proton point?
2) Do ferromagnetic metals retain their magnetic property? If not, state what needs to happen for its magnetic property to be "activated."
3) An ideal diode connected to a 5 V battery in reverse bias will receive how much current and how much voltage?

These are pretty hard for easy questions haha

Click to Show Answer

1) Radially outwards
2) Yes
3) 0, 0

[azboy1910]

Ok, here are some easy ones since I can't think of any hard ones:

1) What direction do electric field lines created by a stationary proton point?
2) Do ferromagnetic metals retain their magnetic property? If not, state what needs to happen for its magnetic property to be "activated."
3) An ideal diode connected to a 5 V battery in reverse bias will receive how much current and how much voltage?

These are pretty hard for easy questions haha

Click to Show Answer

1) Radially outwards
2) Yes
3) 0, 0

I could be wrong too obviously, but:

Click to Show Answer

 1. Correct 
2. Ferromagnetic metals do not retain their magnetic property. An external magnetic field must be applied to them in order for its magnetic properties to show. 
3. An ideal diode acts as a resistor with infinite resistance in reverse bias. So yes, no current flows through the diode, but there is still 5 V across the diode. Instead of using 0 as the current, even though it is technically 0, I like to represent the current as (5/infinity) to better understand this. Multiply the current by the infinite resistance, and you get 5 V. 

Your turn!

[UTF-8 U+6211 U+662F]

Ok, here are some easy ones since I can't think of any hard ones:

1) What direction do electric field lines created by a stationary proton point?
2) Do ferromagnetic metals retain their magnetic property? If not, state what needs to happen for its magnetic property to be "activated."
3) An ideal diode connected to a 5 V battery in reverse bias will receive how much current and how much voltage?

These are pretty hard for easy questions haha

Click to Show Answer

1) Radially outwards
2) Yes
3) 0, 0

I could be wrong too obviously, but:

Click to Show Answer

 1. Correct 
2. Ferromagnetic metals do not retain their magnetic property. An external magnetic field must be applied to them in order for its magnetic properties to show. 
3. An ideal diode acts as a resistor with infinite resistance in reverse bias. So yes, no current flows through the diode, but there is still 5 V across the diode. Instead of using 0 as the current, even though it is technically 0, I like to represent the current as (5/infinity) to better understand this. Multiply the current by the infinite resistance, and you get 5 V. 

Your turn!

Oops yeah you're right, except (Click to Show Hidden Text)

I think ferromagnetic materials display permanent magnetism?

What's the drift speed in a copper wire that has an electron density of and a diameter of 3 mm, with a current of 55 mA? Give your final answer to at least two significant figures.

[azboy1910]

These are pretty hard for easy questions haha

Click to Show Answer

1) Radially outwards
2) Yes
3) 0, 0

I could be wrong too obviously, but:

Click to Show Answer

 1. Correct 
2. Ferromagnetic metals do not retain their magnetic property. An external magnetic field must be applied to them in order for its magnetic properties to show. 
3. An ideal diode acts as a resistor with infinite resistance in reverse bias. So yes, no current flows through the diode, but there is still 5 V across the diode. Instead of using 0 as the current, even though it is technically 0, I like to represent the current as (5/infinity) to better understand this. Multiply the current by the infinite resistance, and you get 5 V. 

Your turn!

Oops yeah you're right, except (Click to Show Hidden Text)

I think ferromagnetic materials display permanent magnetism?

Click to Show Answer

Sorry yeah, after external magnetic field is applied it retains magnetism I believe, I should've been more specific in the question because I was referring to before an external magnetic field is applied.

Anyway, the next question was:

What's the drift speed in a copper wire that has an electron density of and a diameter of 3 mm, with a current of 55 mA? Give your final answer to at least two significant figures.

[azboy1910]

These are pretty hard for easy questions haha

Click to Show Answer

1) Radially outwards
2) Yes
3) 0, 0

I could be wrong too obviously, but:

Click to Show Answer

 1. Correct 
2. Ferromagnetic metals do not retain their magnetic property. An external magnetic field must be applied to them in order for its magnetic properties to show. 
3. An ideal diode acts as a resistor with infinite resistance in reverse bias. So yes, no current flows through the diode, but there is still 5 V across the diode. Instead of using 0 as the current, even though it is technically 0, I like to represent the current as (5/infinity) to better understand this. Multiply the current by the infinite resistance, and you get 5 V. 

Your turn!

Oops yeah you're right, except (Click to Show Hidden Text)

I think ferromagnetic materials display permanent magnetism?

What's the drift speed in a copper wire that has an electron density of and a diameter of 3 mm, with a current of 55 mA? Give your final answer to at least two significant figures.

Click to Show Answer

  so I believe the answer is .