Battery Energy and Power Video Discussion Watch the video to answer physical questionsquestion about electricity and Circuits Assignment 4: Electricity and

Battery Energy and Power Video Discussion Watch the video to answer physical questionsquestion about electricity and Circuits Assignment 4: Electricity and
Circuits
Voltage Current and Magnetism
11 mins watch at least the first 6 mins.
A basic introduction.

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Battery Energy and Power
5 mins.
and email the answers to me.

1. What does a battery do?
2. What is a current?
3. Why do charged particles flow?
4. What is voltage?
5. How much energy do the charged particles have when they return to the
battery?
6. What happens when the battery is depleted?
7. Is the voltage always the same for a battery?
8. What is the difference between batteries in series and parallel?
In series?
In parallel?
9. What are the two effects on a higher voltage across a light bulb?
i)
?
ii)
?
10. What is the effect on the batteries when there is higher current?
Voltage and current laws
9 mins

1. What is the effect of having the same charge on the particles moving around a
circuit?
2. What does a switch do?
3. If the voltage across a light bulb increases what happens to the current?
4. What do you need for current to flow?
5. What is true about light bulbs in parallel?
They have the same….
6. Total current in this parallel circuit is?
7. In series what is the drop in voltage?
8. In which circuit are the lights brightest?
9. Kirchhoff’s current law is?
10. Kirchhoff’s voltage law is?
Ohms law
5mins.

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1. What does a resistor try to do?
2. What are the three ways to increase current?
i) ..
ii) ..
iii) ..
3. What is the effect of having several resistors in parallel?
4. What is the effect of having several resistors in series?
5. What is the formula for Ohms law?
Resistance =
6. What happens to resistors when they heat up?

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