Circuit Lab B/C

[azboy1910]

Alright,

1. Explain how an inductor functions in a circuit.
2. A 7-volt battery is in series with a 2.5k-ohm resistor and a 55 mF capacitor, forming an RC circuit. How long will it take for the capacitor to be charged to 3.2 volts? What is the charge on the capacitor at this state?
3. At the peak of a standard AC U.S. graph, what is the voltage?

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

Alright,

1. Explain how an inductor functions in a circuit.
2. A 7-volt battery is in series with a 2.5k-ohm resistor and a 55 mF capacitor, forming an RC circuit. How long will it take for the capacitor to be charged to 3.2 volts? What is the charge on the capacitor at this state?
3. At the peak of a standard AC U.S. graph, what is the voltage?

Click to Show Answer

1. It acts to resist changes in current by providing back EMFs through Faraday's law.
2. , 

3. 60root2 V? Is this for household application or high-voltage wires?

[azboy1910]

Alright,

1. Explain how an inductor functions in a circuit.
2. A 7-volt battery is in series with a 2.5k-ohm resistor and a 55 mF capacitor, forming an RC circuit. How long will it take for the capacitor to be charged to 3.2 volts? What is the charge on the capacitor at this state?
3. At the peak of a standard AC U.S. graph, what is the voltage?

Click to Show Answer

1. It acts to resist changes in current by providing back EMFs through Faraday's law.
2. , 

3. 60root2 V? Is this for household application or high-voltage wires?

Click to Show Answer

1. Correct
2. Correct
3. I'm sorry for not being clear on this, this is for household applications, and not when the voltage is tens of thousands of volts before the use of step-down transformers.

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

Alright,

1. Explain how an inductor functions in a circuit.
2. A 7-volt battery is in series with a 2.5k-ohm resistor and a 55 mF capacitor, forming an RC circuit. How long will it take for the capacitor to be charged to 3.2 volts? What is the charge on the capacitor at this state?
3. At the peak of a standard AC U.S. graph, what is the voltage?

Click to Show Answer

1. It acts to resist changes in current by providing back EMFs through Faraday's law.
2. , 

3. 60root2 V? Is this for household application or high-voltage wires?

Click to Show Answer

1. Correct
2. Correct
3. I'm sorry for not being clear on this, this is for household applications, and not when the voltage is tens of thousands of volts before the use of step-down transformers.

Click to Show Answer

3. 20 root 2 V? I have no idea

[azboy1910]

Click to Show Answer

1. It acts to resist changes in current by providing back EMFs through Faraday's law.
2. , 

3. 60root2 V? Is this for household application or high-voltage wires?

Click to Show Answer

1. Correct
2. Correct
3. I'm sorry for not being clear on this, this is for household applications, and not when the voltage is tens of thousands of volts before the use of step-down transformers.

Click to Show Answer

3. 20 root 2 V? I have no idea

Click to Show Answer

For question 3, the answer is 170 volts.

Your turn!

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

Around how many amps must flow through the heart in order to cause ventricular fibrillation (and death)? What are three ways to reduce this possible current when working with high voltage applications?

[Creationist127]

Around how many amps must flow through the heart in order to cause ventricular fibrillation (and death)? What are three ways to reduce this possible current when working with high voltage applications?

Click to Show Answer

.075 amps, or 75 mA. To reduce it, wear nonconductive PPE (e.g. rubber boots and gloves), make sure anything you touch is not "hot" (charged or connected to power), and don't work with electricity when you're wet.

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

Around how many amps must flow through the heart in order to cause ventricular fibrillation (and death)? What are three ways to reduce this possible current when working with high voltage applications?

Click to Show Answer

.075 amps, or 75 mA. To reduce it, wear nonconductive PPE (e.g. rubber boots and gloves), make sure anything you touch is not "hot" (charged or connected to power), and don't work with electricity when you're wet.

Yep, your turn!

[Creationist127]

1. A capacitor has 1 cm^2 plates, .5 mm apart from each other (with nothing in between). What is its capacitance?
2. A resistor is a cylinder with 5 mm diameter and is 1 cm long, and has resistivity 1 Ω*m. What is its resistance?
3. The resistor and capacitor are placed in series with each other and a 9-volt battery. How long will it take for the capacitor to charge to 8.5 volts?

EDIT: Fixed wording

[azboy1910]

1. A capacitor has 1 cm-square plates, .5 mm apart from each other (with nothing in between). What is its capacitance?
2. A resistor is a cylinder with 5 mm diameter and is 1 cm long, and has resistivity 1 Ω*m. What is its resistance?
3. The resistor and capacitor are placed in series with each other and a 9-volt battery. How long will it take for the capacitor to charge to 8.5 volts?

Click to Show Answer

1. 1.77E(-10) F or 0.177 nF
2. 509.3 ohms
3. about 2.89 time constants